Why Your “20x25x4” Filter Jams the Slot & Why Your Fridge Says “ERR”
Furnace filters labeled the same nominal size vary by up to 0.87 inches in actual thickness across Honeywell, Lennox, Goodman, and 3M—while GE & LG fridge filters use encrypted RFID tags to lock out generic cartridges. Search our exact caliper & chip compatibility database below.
11 Live / 24 Queued
Nightly Cross-Reference Guides
54 Models
Verified Caliper & RFID Specs
±0.125" (1/8")
Actual Frame Measurement Precision
49% – 77%
Verified Multi-Pack OEM Savings
| Nominal Spec | OEM Brand / Part # | Exact Caliper Size | Rating / Cert | Slot Fit / RFID Chip Note | Verified Multi-Pack Match | Action |
|---|---|---|---|---|---|---|
| 16x25x5 |
Honeywell Home FC100A1029 / FC200E1029
Honeywell / Lennox 4.38" Slot
|
15.88" x 24.75" x 4.38"
15-7/8" x 24-3/4" x 4-3/8"
|
MERV 11 / MERV 13 | No Lockout (Mechanical Slot Fit) |
HVACDirect 16x25x5 (Honeywell 15.88x24.75x4.38 Spec) / Nordic Pure (coupon 9QOS73CI2VEW)
$22.49 / filter (2-Pack)
-50%
|
Check Price → Full Chart |
| 16x25x5 |
Lennox Healthy Climate X6670 (HCF16-11)
Honeywell / Lennox 4.38" Slot
|
15.75" x 24.75" x 4.38"
15-3/4" x 24-3/4" x 4-3/8"
|
MERV 11 / MERV 16 | No Lockout (Interchangeable w/ 15.88"x24.75"x4.38") |
HVACDirect X6670 Exact Fit 2-Pack (coupon 9QOS73CI2VEW)
$21.95 / filter (2-Pack)
-54%
|
Check Price → Full Chart |
| 16x25x5 |
Goodman / Amana M1-1056 (GMU1625)
Goodman / Five Seasons 5.25" Deep Slot
|
15.38" x 25.50" x 5.25"
15-3/8" x 25-1/2" x 5-1/4"
|
MERV 11 | Incompatible w/ Honeywell/Lennox (0.87" thicker) |
HVACDirect M1-1056 Exact 15-3/8x25-1/2x5-1/4 (coupon 9QOS73CI2VEW)
$25.50 / filter (2-Pack)
-52%
|
Check Price → Full Chart |
| 16x25x5 |
Ultravation / Trion Air Bear 255649-105
Trion Air Bear 4.88" Slot
|
15.63" x 24.13" x 4.88"
15-5/8" x 24-1/8" x 4-7/8"
|
MERV 8 / MERV 11 / MERV 13 | Requires Foam Gasket Strip on Front Edge |
HVACDirect Trion Air Bear 16x25x5 (15.63x24.13x4.88) (coupon 9QOS73CI2VEW)
$23.80 / filter (2-Pack)
-49%
|
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| 16x25x5 |
Standard Retail '16x25x5' (Filterbuy / Nordic Pure Retail)
Standard 4.38" Replacement Slot
|
15.75" x 24.75" x 4.38"
15-3/4" x 24-3/4" x 4-3/8"
|
MERV 8 / MERV 11 / MERV 13 | Direct fit for Honeywell F100/F200 & Lennox HCC16-28 |
HVACDirect 16x25x5 Multi-Pack (3-Pack Bundle) (coupon 9QOS73CI2VEW)
$19.65 / filter (3-Pack)
-51%
|
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| 20x25x4 |
3M Filtrete 20x25x4 SlimFit (1550 / MPR 1000 Retail)
Slim 4-Inch Slot (3.63" - 3.75" Max Depth)
|
19.50" x 24.50" x 3.63"
19-1/2" x 24-1/2" x 3-5/8"
|
MERV 11 / MERV 12 | Fits Standard 4" Return Grilles & Slim Tracks |
HVACDirect 20x25x4 Slim-Fit (19.50" x 24.50" x 3.63") (coupon 9QOS73CI2VEW)
$17.98 / filter (4-Pack)
-49%
|
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| 20x25x4 |
Nordic Pure 20x25x4 Tru Mini Pleat / Standard
Slim 4-Inch Slot (3.63" - 3.75" Max Depth)
|
19.50" x 24.50" x 3.63"
19-1/2" x 24-1/2" x 3-5/8"
|
MERV 8 / MERV 12 / MERV 14 | Guaranteed under 3-3/4" depth — zero door jam |
HVACDirect 20x25x4 (3-Pack Value Bundle) (coupon 9QOS73CI2VEW)
$18.45 / filter (3-Pack)
-41%
|
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| 20x25x4 |
Honeywell Home CF100A1025 / FC100A1037 (Labeled 20x25x4 / 20x25x5)
Deep Media Cabinet (4.38" Actual Depth)
|
19.88" x 24.75" x 4.38"
19-7/8" x 24-3/4" x 4-3/8"
|
MERV 11 / MERV 13 | WARNING: 4.38" Thick — WILL JAM in 3.75" Return Slots! |
HVACDirect Honeywell 20x25x4.38 Exact Media Replacement (coupon 9QOS73CI2VEW)
$21.90 / filter (2-Pack)
-53%
|
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| 20x25x4 |
Carrier / Bryant FILXXCAR0020 (20x25x4 Media Cabinet)
Deep Media Cabinet (4.25" Actual Depth)
|
19.75" x 24.50" x 4.25"
19-3/4" x 24-1/2" x 4-1/4"
|
MERV 8 / MERV 11 | WARNING: 4.25" Thick — Only fits Carrier/Bryant FNCCAB cabinets |
HVACDirect Carrier FILXXCAR0020 2-Pack (coupon 9QOS73CI2VEW)
$22.50 / filter (2-Pack)
-55%
|
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| 20x25x4 |
Aprilaire 210 / 213 (Fits Aprilaire 1210 / 2210 / 4200 Cabinets)
Aprilaire Scale-Mount Track (4.13" Pleat Pack)
|
19.75" x 24.25" x 4.13"
19-3/4" x 24-1/4" x 4-1/8"
|
MERV 11 (210) / MERV 13 (213) | Proprietary Self-Seal Plastic Slide Rails |
HVACDirect Aprilaire 210/213 Rail-Ready 2-Pack (coupon 9QOS73CI2VEW)
$24.99 / filter (2-Pack)
-54%
|
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| GE XWF / XWFE (2.00" OD x 6.45" Length) |
GE OEM XWFE (With Factory RFID Chip)
All GE XWFE & XWF Side-by-Side / French Door Fridges
|
2.00" OD x 6.45" H (Keyed Twist Collar)
2" OD x 6-7/16" H
|
NSF/ANSI 42, 53 & 401 Certified | Encrypted RFID Tag Included — Clears 'ERR' Lockout |
Waterdrop Plus WD-XWFE (With Pre-Installed RFID Chip)
$15.66 / filter (3-Pack)
-72%
|
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| GE XWF / XWFE (2.00" OD x 6.45" Length) |
Waterdrop WD-XWFE (Chipped NSF 42/53/401 Replacement)
Direct RFID Plug-and-Play for GE XWFE & XWF
|
2.00" OD x 6.45" H (Exact OEM Keyway)
2" OD x 6-7/16" H
|
NSF/ANSI 42, 53, 401 & 372 Certified | Built-In Smart RFID Chip — Zero Sticker Peeling Needed |
Waterdrop WD-XWFE 3-Pack Direct Bundle (8-10% Partner)
$15.66 / filter ($46.99 / 3-Pack)
-72%
|
Check Price → Full Chart |
| GE XWF / XWFE (2.00" OD x 6.45" Length) |
Glacier Fresh GF-XWFE (With Verified RFID Chip)
Direct RFID Plug-and-Play for GE XWFE & XWF
|
2.00" OD x 6.45" H
2" OD x 6-7/16" H
|
NSF/ANSI 42 & 53 Certified (Sri Lankan Coconut Carbon) | Built-In RFID Chip — No Leak / No ERR Code |
Glacier Fresh GF-XWFE 3-Pack
$14.99 / filter ($44.97 / 3-Pack)
-73%
|
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| GE XWF / XWFE (2.00" OD x 6.45" Length) |
Blue Signature / ClearWater Filters XWFE (Chipped)
Direct RFID Plug-and-Play for GE XWFE & XWF
|
2.00" OD x 6.45" H
2" OD x 6-7/16" H
|
NSF/ANSI 42 Certified | Pre-Programmed RFID Tag Included |
Blue Signature XWFE 2-Pack
$16.50 / filter ($32.99 / 2-Pack)
-70%
|
Check Price → Full Chart |
| GE XWF / XWFE (2.00" OD x 6.45" Length) |
GE OEM XWF (Older Non-RFID Version — Pre-2020 Fridges)
Pre-2020 GE XWF Fridges ONLY (Or Requires RFID Bypass Sticker)
|
2.00" OD x 6.45" H
2" OD x 6-7/16" H
|
NSF/ANSI 42 & 53 Certified | NO RFID CHIP — Triggers 'ERR' in XWFE Fridges without Bypass |
Waterdrop WD-XWF 3-Pack (For Non-RFID XWF Fridges)
$11.33 / filter ($33.99 / 3-Pack)
-77%
|
Check Price → Full Chart |
| GE RPWFE (1.98" OD x 9.80" H) |
GE OEM RPWFE (Factory Cartridge w/ RFID)
All GE Profile / Cafe RPWFE & RPWF French Door Fridges
|
1.98" OD x 9.80" H (Push-In Keyway)
1-31/32" OD x 9-13/16" H
|
NSF/ANSI 42, 53 & 401 Certified | Factory Encrypted RFID Tag — Clears ERR Lockout |
Waterdrop WD-RPWFE (Pre-Chipped 3-Pack)
$16.33 / filter (3-Pack)
-71%
|
Check Price → Full Chart |
| GE RPWFE (1.98" OD x 9.80" H) |
Waterdrop WD-RPWFE (NSF 42/53/401 + Active RFID Chip)
Direct Chipped Drop-In for GE RPWFE & RPWF
|
1.98" OD x 9.80" H
1-31/32" OD x 9-13/16" H
|
NSF/ANSI 42, 53 & 401 Certified | Pre-Installed RFID Transponder — Zero Error Codes |
Waterdrop WD-RPWFE 3-Pack Bundle
$16.33 / filter (3-Pack)
-71%
|
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| GE RPWFE (1.98" OD x 9.80" H) |
Glacier Fresh GF-RPWFE (Chipped NSF 42/53 Replacement)
All GE Profile / Cafe RPWFE & RPWF French Door Fridges
|
1.98" OD x 9.80" H
1-31/32" OD x 9-13/16" H
|
NSF/ANSI 42 & 53 Lead/Chlorine Certified | Built-In RFID Chip — Direct Push-In Fit |
Glacier Fresh GF-RPWFE 3-Pack
$15.33 / filter (3-Pack)
-73%
|
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| GE RPWFE (1.98" OD x 9.80" H) |
Blue Signature / ClearChoice CLCH106-L (RPWFE Compatible)
GE RPWFE Manifold Housing
|
1.98" OD x 9.80" H
1-31/32" OD x 9-13/16" H
|
NSF/ANSI 42 Certified | RFID Enabled — Clears Dispenser Lock |
ClearChoice RPWFE 3-Pack
$17.99 / filter (3-Pack)
-68%
|
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| GE RPWFE (1.98" OD x 9.80" H) |
GE Legacy RPWF (Older Non-RFID Cartridge)
Pre-2016 GE Fridges ONLY (Fails in RPWFE Without Bypass)
|
1.98" OD x 9.80" H
1-31/32" OD x 9-13/16" H
|
NSF/ANSI 42 & 53 | WARNING: NO RFID CHIP — Triggers Lockout in RPWFE Fridges |
Upgrade to Chipped Waterdrop WD-RPWFE (Fits Both RPWF & RPWFE)
$16.33 / filter (3-Pack)
-71%
|
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| 16x20x4 |
Honeywell FC100A1003 (OEM, MERV 11)
Honeywell F100 / F150 / F200 / F25 / F35 media cabinets (e.g. F100F1004, F200E1003)
|
15.875" x 19.875" x 4.375"
15-7/8" x 19-7/8" x 4-3/8"
|
MERV 11 | Deep cabinet: 4-3/8" depth required |
HVACDirect (coupon 9QOS73CI2VEW)
About $53.00 / 2-pack (Amazon, 21 Oct 2026)
-Check live price
|
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| 16x20x4 |
Filtrete 16x20x4 MPR 1550 / MERV 12
Honeywell-style 4-3/8" cabinets (near fit, 4.31" deep)
|
15.88" x 19.88" x 4.31"
15-7/8" x 19-7/8" x 4-5/16"
|
MERV 12 (MPR 1550) | Within 1/16" of Honeywell depth |
Filtrete MPR 1550 2-pack (Amazon B086DYVPW2)
About $36.19 / 2-pack (Amazon, 22 Oct 2026)
-Check live price
|
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| 16x20x4 |
Nordic Pure 16x20x4 pleated (MERV 8 / 13)
Standard 4" filter racks and slim media cabinets ONLY
|
15.5" x 19.5" x 3.63"
15-1/2" x 19-1/2" x 3-5/8"
|
MERV 8 / MERV 13 | Will sit short in a 4-3/8" Honeywell cabinet |
HVACDirect 16x20x4M13-6 (coupon 9QOS73CI2VEW)
Check live price
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|
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| 16x20x4 |
Mann+Hummel 16x20x4 MERV 8
Standard 4" filter racks; does not replace 4-3/8" or 5" filters
|
15.5" x 19.5" x 3.75"
15-1/2" x 19-1/2" x 3-3/4"
|
MERV 8 (MPR 600) | Standard 4" depth |
HVACDirect 16x20x4 2-pack (Target) (coupon 9QOS73CI2VEW)
$38.95 / 2-pack (Target sale price)
-Check live price
|
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| 20x25x5 |
Honeywell Home FC100A1037 / FC200E1037
Honeywell / Lennox 4.38" Slot
|
19.94" x 24.69" x 4.38"
19-15/16" x 24-11/16" x 4-3/8"
|
MERV 11 / MERV 13 | No lockout — fits Honeywell F100/F200 cabinets |
HVACDirect Honeywell FC100A1037 exact-fit (coupon 9QOS73CI2VEW)
$29.95 / filter
-40%
|
Check Price → Full Chart |
| 20x25x5 |
Lennox Healthy Climate X6673 (HCF20-11)
Honeywell / Lennox 4.38" Slot
|
19.75" x 24.75" x 4.38"
19-3/4" x 24-3/4" x 4-3/8"
|
MERV 11 / MERV 16 | Interchangeable with FC100A1037 in most HCC20-28 cabinets |
HVACDirect Lennox X6673 compatible (coupon 9QOS73CI2VEW)
$31.50 / filter
-43%
|
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| 20x25x5 |
Goodman / Amana M2-1056 (GMU2025)
Goodman 5.25" Deep Media Slot
|
19.38" x 25.50" x 5.25"
19-3/8" x 25-1/2" x 5-1/4"
|
MERV 11 | NOT interchangeable — 0.87" deeper than Honeywell/Lennox |
HVACDirect Goodman M2-1056 media (coupon 9QOS73CI2VEW)
$33.00 / filter
-45%
|
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| 20x25x5 |
Trion Air Bear 255649-102 (20x25x5)
Trion Air Bear Cabinet
|
19.63" x 24.13" x 4.88"
19-5/8" x 24-1/8" x 4-7/8"
|
MERV 8 / MERV 13 | Narrower frame — loose in Honeywell cabinet |
HVACDirect Trion Air Bear 20x25x5 (coupon 9QOS73CI2VEW)
$27.95 / filter
-41%
|
Check Price → Full Chart |
| 20x25x5 |
Generic retail '20x25x5' (Filtrete/Aerostar)
Universal box filters
|
19.5" x 24.5" x 4.38" (varies)
19-1/2" x 24-1/2" x 4-3/8"
|
MERV 8–13 | Check frame depth — many 'universal' 5" filters are 4.38" |
HVACDirect 20x25x5 multi-pack (coupon 9QOS73CI2VEW)
$24.99 / filter
-38%
|
Check Price → Full Chart |
| LG LT1000P (1.97" OD x 6.90" H) |
LG OEM LT1000P / LT1000PC / LT1000PCS (MDJ64844601)
LG top-left compartment (LRMVS, LRFVS, LMXS)
|
1.97" OD x 6.90" body
1-31/32" x 6-29/32"
|
NSF/ANSI 42, 53, 401 | No RFID — quarter-turn dual-lug keyway |
OEM benchmark
$54.99
-—
|
Check Price → Full Chart |
| LG LT1000P (1.97" OD x 6.90" H) |
Waterdrop LT1000P Replacement
LG LT1000P family
|
1.97" OD x 6.90" body
1-31/32" x 6-29/32"
|
NSF/ANSI 42, 53, 401, 372 | Matching dual-lug keyway, no chip needed |
Waterdrop LT1000P (8% partner link)
$32.99
-40%
|
Check Price → Full Chart |
| LG LT1000P (1.97" OD x 6.90" H) |
Swift Green SGF-LT1000P Rx (Made in USA)
LG LT1000P family
|
1.97" OD x 6.90" body
1-31/32" x 6-29/32"
|
Pharmaceutical + VOC reduction (Rx) | Matching keyway, no chip |
Swift Green SGF-LT1000P Rx
$30.60
-44%
|
Check Price → Full Chart |
| LG LT1000P (1.97" OD x 6.90" H) |
Swift Green SGF-LT1000P VOC
LG LT1000P family
|
1.97" OD x 6.90" body
1-31/32" x 6-29/32"
|
VOC reduction | Matching keyway, no chip |
Swift Green SGF-LT1000P VOC
$27.54
-50%
|
Check Price → Full Chart |
| LG LT1000P (1.97" OD x 6.90" H) |
Frizzlife MS99 0.5-Micron Inline Fridge Filter (Bypass Kit)
Any LG with bypass plug
|
2.56" OD x 10.0" L, 1/4" quick-connect
2-9/16" x 10"
|
NSF/ANSI 42 & 53 (lead, cysts) | No cartridge keyway or chip — runs with factory bypass plug installed |
Frizzlife MS99 Inline — use code GLOSSYKOALA for 10% off
$75.99 (≈$68.39 w/ GLOSSYKOALA)
-Lowest cost/gal
|
Check Price → Full Chart |
| EveryDrop 1 / EDR1RXD1 (2.00" OD x 7.13" H) |
Whirlpool EveryDrop Filter 1 EDR1RXD1 (OEM)
Whirlpool/KitchenAid/Maytag French door (grille/ceiling mount)
|
2.00" OD x 7.13" L
2" x 7-1/8"
|
NSF/ANSI 42, 53, 401 | No RFID — twist keyway |
OEM benchmark
$54.99
-—
|
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| EveryDrop 1 / EDR1RXD1 (2.00" OD x 7.13" H) |
Whirlpool W10295370A / W10295370 (Part #)
Same as EDR1RXD1
|
2.00" OD x 7.13" L
2" x 7-1/8"
|
NSF/ANSI 42, 53 | Identical keyway |
Waterdrop W10295370A replacement
$34.99
-34%
|
Check Price → Full Chart |
| EveryDrop 1 / EDR1RXD1 (2.00" OD x 7.13" H) |
Waterdrop Replacement for EveryDrop Filter 1
EDR1RXD1 family
|
2.00" OD x 7.13" L
2" x 7-1/8"
|
NSF/ANSI 42, 53, 401 | Matching keyway; dual O-ring |
Waterdrop Filter 1 (8% partner link)
$34.99
-36%
|
Check Price → Full Chart |
| EveryDrop 1 / EDR1RXD1 (2.00" OD x 7.13" H) |
Kenmore 46-9930 / 9930 (Same cartridge)
Kenmore Elite French door
|
2.00" OD x 7.13" L
2" x 7-1/8"
|
NSF/ANSI 42, 53 | Identical keyway |
Waterdrop Filter 1 replacement
$34.99
-30%
|
Check Price → Full Chart |
| EveryDrop 1 / EDR1RXD1 (2.00" OD x 7.13" H) |
Frizzlife MS99 0.5-Micron Inline Fridge Filter (Bypass Kit)
EDR1RXD1 fridges (bypass plug)
|
2.56" OD x 10.0" L, 1/4" quick-connect
2-9/16" x 10"
|
NSF/ANSI 42 & 53 (lead, cysts) | No cartridge keyway or chip — runs with factory bypass plug installed |
Frizzlife MS99 Inline — use code GLOSSYKOALA for 10% off
$75.99 (≈$68.39 w/ GLOSSYKOALA)
-Lowest cost/gal
|
Check Price → Full Chart |
| EDR4RXD1 / UKF8001 (2.35" OD x 8.00" H) |
Whirlpool EveryDrop Filter 4 EDR4RXD1 / Maytag UKF8001 (OEM)
Maytag/Whirlpool bottom-freezer (base grille)
|
2.05" OD x 8.50" L
2-1/16" x 8-1/2"
|
NSF/ANSI 42, 53, 401 | No RFID — push & quarter-turn |
OEM benchmark
$54.99
-—
|
Check Price → Full Chart |
| EDR4RXD1 / UKF8001 (2.35" OD x 8.00" H) |
Waterdrop WDP-F07 (UKF8001)
UKF8001 family
|
2.05" OD x 8.50" L
2-1/16" x 8-1/2"
|
NSF/ANSI 42, 53, 401 | Matching head |
Waterdrop WDP-F07 (8% partner link)
$30.98
-44%
|
Check Price → Full Chart |
| EDR4RXD1 / UKF8001 (2.35" OD x 8.00" H) |
SimPure RedyPure RP-F04 (UKF8001/UKF9001)
UKF8001 family
|
2.05" OD x 8.50" L
2-1/16" x 8-1/2"
|
NSF/ANSI 42 | Matching head |
SimPure RedyPure RP-F04 (12% link, 60-day cookie)
$22.99
-58%
|
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| EDR4RXD1 / UKF8001 (2.35" OD x 8.00" H) |
Swift Green SGF-M9 Rx
UKF8001 family
|
2.05" OD x 8.50" L
2-1/16" x 8-1/2"
|
Pharmaceutical + VOC (Rx) | Matching head |
Swift Green SGF-M9 Rx (Made in USA)
see link
-~40%
|
Check Price → Full Chart |
| EDR4RXD1 / UKF8001 (2.35" OD x 8.00" H) |
Frizzlife MS99 0.5-Micron Inline Fridge Filter (Bypass Kit)
UKF8001 fridges (bypass plug)
|
2.56" OD x 10.0" L, 1/4" quick-connect
2-9/16" x 10"
|
NSF/ANSI 42 & 53 (lead, cysts) | No cartridge keyway or chip — runs with factory bypass plug installed |
Frizzlife MS99 Inline — use code GLOSSYKOALA for 10% off
$75.99 (≈$68.39 w/ GLOSSYKOALA)
-Lowest cost/gal
|
Check Price → Full Chart |
| Samsung HAF-QIN (2.05" OD x 8.75" H) |
Samsung HAF-QIN/EXP DA97-17376B (OEM)
RF28T/RF23M/RF22 French door (2019+)
|
2.04" OD x 9.10" L
2-1/32" x 9-1/8"
|
NSF/ANSI 42, 53, 401 | Tab-lock head, no RFID |
OEM benchmark
$49.99
-—
|
Check Price → Full Chart |
| Samsung HAF-QIN (2.05" OD x 8.75" H) |
Samsung DA97-08006C (Same as HAF-QIN)
HAF-QIN family
|
2.04" OD x 9.10" L
2-1/32" x 9-1/8"
|
NSF/ANSI 42, 53 | Tab-lock head |
Swift Green SGF-HAFQIN Rx
$30.60
-39%
|
Check Price → Full Chart |
| Samsung HAF-QIN (2.05" OD x 8.75" H) |
Swift Green SGF-HAFQIN Rx (Made in USA)
HAF-QIN family
|
2.04" OD x 9.10" L
2-1/32" x 9-1/8"
|
Pharmaceutical + VOC (Rx) | Matching tab head |
Swift Green SGF-HAFQIN Rx (10–15% link)
$30.60
-39%
|
Check Price → Full Chart |
| Samsung HAF-QIN (2.05" OD x 8.75" H) |
Waterdrop Samsung replacements
Samsung (check part #)
|
varies by model
varies
|
NSF/ANSI 42, 53, 401 | Confirm HAF-QIN in listing |
Waterdrop Samsung collection
from $39.99
-~20%
|
Check Price → Full Chart |
| Samsung HAF-QIN (2.05" OD x 8.75" H) |
Samsung HAF-CIN/EXP DA29-00020B (Older — NOT compatible)
Pre-2019 RF28H/RF26
|
2.00" OD x 8.9" L
2" x 8-7/8"
|
NSF/ANSI 42, 53 | Different tab head — won't lock into HAF-QIN housing |
Check your part number first
—
-—
|
Check Price → Full Chart |
| EPTWFU01 (1.85" OD x 8.80" H) |
Frigidaire PureSource Ultra II EPTWFU01 (OEM)
Frigidaire/Gallery French door 2018+
|
2.0" OD x 8.6" L (incl. stem)
2" x 8-5/8"
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NSF/ANSI 42, 53, 401 | Push-in stem, no RFID |
OEM benchmark
$49.99
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|
Check Price → Full Chart |
| EPTWFU01 (1.85" OD x 8.80" H) |
Frigidaire EWF02 (Same as EPTWFU01)
EPTWFU01 family
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2.0" OD x 8.6" L
2" x 8-5/8"
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NSF/ANSI 42, 53 | Push-in stem |
Waterdrop Frigidaire collection
see link
-~35%
|
Check Price → Full Chart |
| EPTWFU01 (1.85" OD x 8.80" H) |
Waterdrop EPTWFU01 replacement
EPTWFU01 family
|
2.0" OD x 8.6" L
2" x 8-5/8"
|
NSF/ANSI 42, 53, 401 | Matching stem |
Waterdrop Frigidaire (8% link)
see link
-~35%
|
Check Price → Full Chart |
| EPTWFU01 (1.85" OD x 8.80" H) |
Frigidaire PureSource Ultra ULTRAWF (Older — NOT compatible)
Pre-2018 side-by-side
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2.0" OD x 8.2" L
2" x 8-3/16"
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NSF/ANSI 42, 53 | Twist head — won't fit stem housing |
Check housing type first
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|
Check Price → Full Chart |
| EPTWFU01 (1.85" OD x 8.80" H) |
Frizzlife MS99 0.5-Micron Inline Fridge Filter (Bypass Kit)
EPTWFU01 fridges (bypass)
|
2.56" OD x 10.0" L, 1/4" quick-connect
2-9/16" x 10"
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NSF/ANSI 42 & 53 (lead, cysts) | No cartridge keyway or chip — runs with factory bypass plug installed |
Frizzlife MS99 Inline — use code GLOSSYKOALA for 10% off
$75.99 (≈$68.39 w/ GLOSSYKOALA)
-Lowest cost/gal
|
Check Price → Full Chart |
Published Deep-Dive Cross-Reference Charts
Backed by Real Reddit & X Fit Complaints
HVAC Nominal-vs-Actual Sizes
5 Models Compared
16x25x5 Furnace Filter Exact Actual Dimensions & Cross-Reference Chart
A '16x25x5' furnace filter is almost never 16" x 25" x 5". Actual caliper thickness ranges from 4.38" (4-3/8") on Honeywell & Lennox cabinets up to 5.25" (5-1/4") on Goodman/Amana media cabinets. Ordering the wrong brand jams the cabinet door or leaves a 7/8" bypass gap.
CRITICAL FIT RULE: Measure your old filter's depth with a tape measure before buying. If your cabinet takes 4-3/8" depth (Honeywell FC100A1029 / Lennox X6670), a 5-1/4" Goodman filter WILL NOT slide in. Exact-size multi-packs ship from HVACDirect — enter coupon 9QOS73CI2VEW at checkout.
View Exact 1/8" & RFID Spec Table →
HVAC Nominal-vs-Actual Sizes
5 Models Compared
20x25x4 Air Filter Too Big for Slot? Exact Actual Size Chart (3.63" vs 4.38")
The #1 most returned HVAC filter in North America is the 20x25x4 because '4-inch' filters split into two incompatible standards: Deep Media Cabinet Filters (4.25" to 4.38" actual depth) vs. Slim Return-Grille / Retail 4-Inch Filters (3.63" to 3.75" actual depth).
CRITICAL FIT RULE: If your filter goes into a wall/ceiling return grille or standard 4" sheet-metal track, you MUST buy a 3.63" or 3.75" Slim-Fit 20x25x4. A 4.38" Honeywell or 4.25" Carrier media filter will jam 1/2 inch out of the slot. Exact-size multi-packs ship from HVACDirect — enter coupon 9QOS73CI2VEW at checkout.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
GE XWF vs. XWFE Fridge Filter RFID Lockout, Chip Compatibility & Certified $15 Alternatives
GE refrigerators built after 2020 switched from the non-chipped XWF filter to the RFID-chipped XWFE filter. While both have the exact same physical dimensions (2.00" diameter x 6.45" length) and twist-collar threads, an XWFE fridge checks for an encrypted NFC/RFID chip on the filter label and displays 'ERR' (shutting off water & ice) if you insert a plain XWF.
CRITICAL COMPATIBILITY RULE: An XWFE filter (with RFID chip) works in BOTH XWF and XWFE refrigerators. A non-chipped XWF filter ONLY works in older XWF fridges unless you buy an RFID-equipped aftermarket XWFE (like Waterdrop WD-XWFE) or transfer the RFID sticker from your old OEM cartridge. Want to skip RFID cartridges entirely? The Frizzlife MS99 inline fridge filter feeds the fridge's bypass plug — code GLOSSYKOALA saves 10%.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
GE RPWFE vs. RPWF Fridge Filter RFID Lockout & $16 Chipped Replacements
GE Profile & Cafe refrigerators using the RPWFE filter incorporate a near-field RFID chip inside the back label. Inserting an older non-chipped RPWF filter triggers 'NOT GENUINE FILTER' or shuts off water dispensing. Here is the exact 1.98" x 9.80" caliper & RFID cross-reference.
CRITICAL COMPATIBILITY RULE: RPWFE refrigerators require an active RFID transponder chip on the cartridge. Use RFID-equipped Waterdrop WD-RPWFE or Glacier Fresh GF-RPWFE cartridges for plug-and-play operation at 70% below GE OEM cost. Want to skip RFID cartridges entirely? The Frizzlife MS99 inline fridge filter feeds the fridge's bypass plug — code GLOSSYKOALA saves 10%.
View Exact 1/8" & RFID Spec Table →
HVAC Nominal-vs-Actual Sizes
4 Models Compared
16x20x4 Air Filter Actual Size Chart: 3.63" Slim vs. 4.38" Honeywell/Lennox Cabinet
A filter labelled 16x20x4 can be one of two very different cartridges. Standard pleated 4-inch filters (Nordic Pure, Mann+Hummel and most generics) are about 15-1/2" x 19-1/2" x 3-5/8" to 3-3/4" deep, while Honeywell F100/F200-style media cabinets (also copied by Lennox, Bryant and Carrier) take a 15-7/8" x 19-7/8" x 4-3/8" cartridge. Put a 3-5/8" filter in a 4-3/8" cabinet and unfiltered air bypasses the media.
CRITICAL FIT RULE: Measure the depth of your old filter. If it is about 4-3/8" (4.38"), buy a Honeywell FC100A1003-compatible cartridge (or a brand's '16x20x5 Honeywell replacement'). If it is about 3-5/8" to 3-3/4", a standard pleated 16x20x4 is the correct fit. Exact-size multi-packs ship from HVACDirect — enter coupon 9QOS73CI2VEW at checkout.
View Exact 1/8" & RFID Spec Table →
HVAC Nominal-vs-Actual Sizes
5 Models Compared
20x25x5 Furnace Filter Exact Actual Dimensions (Honeywell FC100A1037 vs. Lennox X6673 vs. Goodman M2-1056)
'20x25x5' is a nominal label: Honeywell FC100A1037 media measures 19.94" x 24.69" x 4.38", Lennox X6673 (Healthy Climate 20x25x5) about 19.75" x 24.75" x 4.38" — interchangeable — but Goodman/Amana M2-1056 deep cabinets take a 5.25"-deep media pack, and Trion Air Bear 20x25x5 is 4.88". Mixing families leaves a bypass gap or jams the door.
CRITICAL FIT RULE: Measure depth. 4-3/8" = Honeywell/Lennox family; 4-7/8" = Trion Air Bear; 5-1/4" = Goodman/Amana. Order exact-size multi-packs from HVACDirect with coupon 9QOS73CI2VEW.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
LG LT1000P vs. LT1000PC / MDJ64844601 Fridge Filter Exact Keyway & NSF Alternatives
LG LT1000P, LT1000PC and LT1000PCS (MDJ64844601) are the same twist-in cartridge (≈1.97" OD x 6.90" body) — the suffix only reflects packaging/revision. Leaks and 'won't lock' issues come from misaligned quarter-turn lugs or a dry O-ring, not size differences. LT1000P fridges have no RFID lockout.
CRITICAL COMPATIBILITY RULE: Any LT1000P/PC/PCS-compatible cartridge fits; push up fully and rotate 1/4 turn until the lugs click. Waterdrop and Swift Green both ship verified LT1000P equivalents.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
Whirlpool EveryDrop Filter 1 (EDR1RXD1 / W10295370A) O-Ring Tolerance & Certified Replacements
EveryDrop Filter 1 (EDR1RXD1 / W10295370A / W10295370) is a 2.00" OD x 7.13" push-and-twist cartridge used in Whirlpool, KitchenAid, Maytag, Jenn-Air and Kenmore French-door fridges. 'Won't click' and drip issues are almost always O-ring tolerance — no RFID chip is used.
CRITICAL COMPATIBILITY RULE: EDR1RXD1 has no RFID lockout. Lubricate both O-rings with water, insert fully and rotate clockwise until the arrow aligns. Waterdrop's Filter 1 replacement is our tested pick.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
EveryDrop Filter 4 (EDR4RXD1 / Maytag UKF8001) Exact Nozzle Specs & $13 NSF-53 Replacements
EveryDrop Filter 4 (EDR4RXD1) and Maytag UKF8001 / UKF8001AXX / 4396395 are one cartridge: ≈2.05" OD x 8.5" L with a push-in/rotate head, used in Maytag, Whirlpool, Amana and Jenn-Air bottom-freezer fridges. No RFID.
CRITICAL COMPATIBILITY RULE: UKF8001 = EDR4RXD1 = 4396395 = Puriclean II. Any of those part numbers fit. Waterdrop WDP-F07, SimPure RedyPure RP-F04 and Swift Green SGF-M9 are verified cross-references.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
Samsung HAF-QIN (DA97-17376B vs DA97-08006C) Locking Tab Comparison & Non-Leaking Alternatives
Samsung HAF-QIN/EXP (DA97-17376B, also DA97-08006C) is the 2019+ internal upper-left filter for RF28/RF23/RF22 French-door fridges. It replaced HAF-CIN; the head geometry differs (tabs), so HAF-CIN (DA29-00020B) will NOT lock into a HAF-QIN housing. No RFID chip.
CRITICAL COMPATIBILITY RULE: Match the part — DA97-17376B/HAF-QIN only. Swift Green SGF-HAFQIN Rx (Made in USA) is a verified cross-reference; Waterdrop lists its Samsung range in the linked collection.
View Exact 1/8" & RFID Spec Table →
Fridge Water Filter RFID Cross-Reference
5 Models Compared
Frigidaire EPTWFU01 PureSource Ultra II vs. ULTRAWF Stem Length & $14 NSF-401 Replacements
Frigidaire EPTWFU01 (PureSource Ultra II, 'EPTWFU01 / EWF02') is a push-in stem filter (≈2.0" OD x 8.6" L incl. stem) for 2018+ Frigidaire/Gallery/Professional French-door fridges. It replaces the twist-type ULTRAWF; the stem is not backward compatible. No RFID.
CRITICAL COMPATIBILITY RULE: EPTWFU01 = push-in stem, ULTRAWF = twist head — not interchangeable. Waterdrop's Frigidaire collection lists stem-fit EPTWFU01 replacements; for a no-cartridge option use Frizzlife MS99 inline with code GLOSSYKOALA.
View Exact 1/8" & RFID Spec Table →
Next Up in the Nightly Autonomous Publishing Queue (24 Topics Ready)
1 New Page Shipped Every Night at 9:00 PM AEST| Queue ID | Target Size / Model | Upcoming Spec Guide Title | Category | Real Complaint Trigger |
|---|---|---|---|---|
| Q06 | 20x20x4 | 20x20x4 Air Filter Actual Size Chart (19.5"x19.5"x3.63" vs 19.88"x19.88"x4.38") | HVAC Nominal-vs-Actual Sizes | r/HomeImprovement — '20x20x4 return filter sticks out 3/4 inch' |
| Q07 | 20x20x5 | 20x20x5 Furnace Filter Exact Actual Dimensions: Honeywell FC100A1011 vs. Lennox X6672 vs. Goodman M8-1056 | HVAC Nominal-vs-Actual Sizes | r/HVAC — 'Goodman M8-1056 20x20x5 is actually 20.25 x 20.63 x 5.25' |
| Q10 | 16x25x4 | 16x25x4 Air Filter Actual Size Chart: Why 3M & Honeywell Differ by 0.75 Inches | HVAC Nominal-vs-Actual Sizes | r/HomeImprovement — '16x25x4 filter from Home Depot won't let furnace door close' |
| Q11 | 16x28x4 (Aprilaire 413) | Aprilaire 413 vs. 213 vs. 313 Exact Slide-Rail Dimensions & $24 Aftermarket Replacements | HVAC Nominal-vs-Actual Sizes | r/HVAC — 'Ordered Aprilaire 213 instead of 413, why are both called 4 inch filters?' |
| Q13 | 16x25x3 (Carrier 3.25" Spec) | Carrier / Bryant FILXXCAR0016 '16x25x3' Exact Size (15.75" x 24.25" x 3.25") Cross-Reference | HVAC Nominal-vs-Actual Sizes | r/HVAC — 'Carrier 3-inch media cabinet takes weird 3.25 inch filter nobody stocks' |
| Q14 | 14x25x1 | 14x25x1 & 14x24x1 Actual Size Chart: 13.5" vs 13.75" Grille Lip Fallout Fix | HVAC Nominal-vs-Actual Sizes | r/HomeImprovement — '14x25x1 filter is 13.5 inches wide and falls right through ceiling return' |