FiltersUSA recommends changing your Aprilaire filters at least every 10-12 months depending upon use. We carry a variety of Aprilaire brand name products. Scroll down to view them all, then simply click the BUY icon to place your item in the shopping cart for secure checkout.

Aprilaire has a new efficiency upgrade for Aprilaire Air Cleaner models 2200 and 2400 Air Cleaners. Installation video and further information can be found HERE.

Category: Humidifier Water Panels     A10WPR NEW Aprilaire White Water Panel Filter Fits Models 110, 220, 500, 550, 558 Honeywell HE220A/B, HE225A/B Save up to 50% on water used 2 Pack Special Also For Model #s: Lennox WB2-12, Chippewa 220 $23.95 $21.95     A12WPR NEW Aprilaire White Water Panel Filter fits Models 112, 224, 440, 445, 448 Save up to 50% on Water Used 2 Pack Special Also For Model #s: Also fits Chippewa 224, 225 $27.95 $25.95     A35WPR NEW Aprilaire White Water Panel Filter Fits Models 350, 360, 560 568, 600, 700, 760, 768 Save up to 50% on Water Used 2 Pack Special Also fits Aprilaire Model 400, 400A, HE260, HE265, HE360, HE365 Also For Model #s: Also Fit Tempstar HMICLF18A, Lennox WB2-17, WB2-18, LBP2317, Aprilaire 600A, 700A, 600M, 700M $25.95 $23.95     HUAA10 Aprilaire GENUINE OEM Replacement Water Panel Humidifier Pad #10, Fits Model 110, 220, 500, 550, 558 also fits Lennox WB2-12 Vista 710 & A10PR Also Fits Chippewa Model 220.(9 3/4 x 9 5/8 x 1 5/8) $15.00 $11.95     HUAA10A Aprilaire GENUINE OEM Replacement Water Panel Humidifier Pad #10. Fits Model 110, 220, 500, 550, 558 Also Fit Lennox WB2-12, Vista 710 BestAir Pro A10PR 2-PACK SPECIAL $30.00 $21.95     HUAA10S Aprilaire GENUINE OEM Water Panel Humidifier Pad #10, Fits 110, 220, 500, 550, 558 Also fit Lennox WB2-12, WB212 Vista 710, BestAir Pro A10PR 3-PACK SPECIAL $45.00 $26.95     HUAA12 Aprilaire GENUINE OEM Replacement Water Panel Humidifier, Pad #12 Fits Models 112, 224, 440, 445, 448 Also Fits Vista 712 & A12PR OEM HUAA12 Also Fits Chippewa Model 224,225.(11 1/4 x 14 5/8 x 1 5/8) $19.00 $15.95     HUAA1200 Aprilaire OEM Water Filter Fits Models 1120, 1130, 1140 (Bercor Number 41518) $85.00 $58.95     HUAA12A Aprilaire GENUINE OEM Replacement Water Panel Humidifier Pad #12. Fits Model 112, 224, 440, 445, 448 Also Fits Vista 712 BestAirPro A12PR (HUAA12) 2-PACK SPECIAL $38.00 $24.95     HUAA12S Aprilaire GENUINE OEM Water Panel #12 Pad Fits 112, 224, 440, 445, 48 3-PACK SPECIAL $57.00 $32.99     HUAA30 Aprilaire GENUINE OEM Replacement Humidifier Water Panel Pad #30 Fits Model 330 (8 1/4 x 15 3/4 x 1 3/4) $26.00 $21.00     HUAA35 Aprilaire GENUINE OEM Replacement Water Panel Humidifier Pad #35, Fits Model 350, 360, 560, 568, 600, 700, 760, 768 Also fits Lennox OEM WB2-17, WB217, WP2-18, WP218, HUMCCLBP2317 HUMCCLBP2417A, HUMBBLBP2417A Vista 714, BestAir Pro A35PR (HUAA35) (10 x 13 x 1 5/8) Also fits Tempstar (ICP) HMICLF18A $20.00 $15.95     HUAA35A Aprilaire GENUINE OEM Replacement Water Panel Humidifier Pad #35. Fits Model 350, 360, 560, 568, 600, 700, 760, 768. Also fits Lennox OEM WB2-17, WP2-18, LBP2317 2-PACK SPECIAL $40.00 $21.95     HUAA35S Aprilaire GENUINE OEM Water Panel #35, Pad Fits 350, 360, 560, 568, 600, 700, 760, 768 Also fits Lennox OEM WB2-17, WP2-18 Also Fits Model 757 (HUMCCLBP2317) Vista 714 & BestAir Pro A25PR (HUAA35) 3-PACK SPECIAL $60.00 $26.99     HUAA45A Aprilaire GENUINE OEM Water Panel #45 Pad Fits Model 400 (wick Filter) Also Fits Vista A12PR, A12WPR (HUAA45A) 12 3/4x9 3/4x2" 2 Per Box $24.95 $20.95     PCP4406 Float Assembley For Model 400 $19.95 $16.95     Category: Humidifier Parts     58 Aprilaire Digital Humidistat 58 Fits Aprilaire Models Humidifier 400A, 500A, 600A 700A. $139.95 $109.95     PC3999 R P Power Transformer for Aprilaire Humidifiers For Models Aprilaire Humidifier 110, 112, 220, 224, 440, 550, 560, 1120, 1130, 1140. $25.00 $22.95     PC4001 Replacement Motor for Aprilaire Humidifiers For Aprilaire Humidifier 700, 760 (4237) $94.00 $84.95     PC4001A Replacement Circuit Board for Aprilaire Humidifier 760 GENUINE OEM Replacement Circuit Board for Aprilaire Humidifier 760 and 760A (4238) $84.00 $74.95     PC4001B Replacement Circuit Board for Aprilaire Model 700 GENUINE OEM Replacement Circuit Board for Aprilaire Model 700 (4238) $85.00 $74.95     PC4004 GENUINE OEM Replacement Fan Blade for Model 760&A (4247) $35.00 $29.99     PC4004A GENUINE OEM Replacement Aprilaire in-line strainer with red orifice (4004)&(4021) $11.00 $9.00     PC4004B GENUINE OEM Replacement Aprilaire in-line strainer with white orifice (4004)&(4007) $11.00 $9.00     PC4004C GENUINE OEM Replacement Aprilaire in-line strainer with yellow orifice (4004)&(4231) $11.00 $9.00     PC4004D GENUINE OEM Replacement Aprilaire in-line strainer with blue orifice (4004)&(4232) $11.00 $9.00     PCK4235 Aprilaire Feed Tube 4235 Fits Models 700, 760, 768 41773 $15.00 $12.00     PCK440 GENUINE OEM Replacement Aprilaire Water Distribution Tray & Scale Control Top, Plus Water Panel for models 440-445 (4080)&(4081)&(12) $54.00 $46.95     PCK440A GENUINE OEM Replacement Aprilaire Water distribution tray (only) Fits model 440-445 (4081) $27.00 $22.99     PCK445 GENUINE OEM Replacement Reservoir Liner for Aprilaire Model 445 (4093) $17.00 $14.99     PCK445A GENUINE OEM Replacement Reservoir Bolt kit for Aprilaire Model 445 (4101) $12.00 $10.50     PCK445B GENUINE OEM Replacement Pump(4089)for Aprilaire Model 445 $169.00 $145.00     PCK445C GENUINE OEM Replacement Impeller (4148) for Aprilaire Model 445 $14.00 $11.00     PCK445D GENUINE OEM Replacement Float Valve Assy.(4087) For Aprilaire Model 445 $49.00 $49.95     PCK550 GENUINE OEM Replacement Aprilaire Water Distribution Tray & Scale Control Top Plus Water Panel for model 550A (4218)&(4217)&(10) $48.00 $39.95     PCK550A GENUINE OEM Replacement Part No.4223 Drain Spud for Aprilaire Model 550 and 560 (4223) $5.50 $4.00     PCK550B GENUINE OEM Replacement Aprilaire Water Distributin Tray(Black) with black water Nozzle For Model 550 (4218)&(4184) $25.00 $19.95     PCK550C GENUINE OEM Replacement Aprilaire Water Distribition Tray (only) Fits Model 550 and 550A (4218) $17.00 $13.99     PCK560 GENUINE OEM Replacement Aprilaire Water Distribution Tray & Scale Control Top Plus Water Panel for model 560, 560A, 568 (4236)&(4277)&(35) $48.00 $39.95     PCK560A GENUINE OEM Replacement Water Distribution Tray Nozzle for Model 350, 360, 550, 560&A (4184) $13.00 $9.95     PCK600 GENUINE OEM Replacement Aprilaire Water Distribution Tray & Scale Control Frame Plus Water Panel For Model 600 (4331)&(4330)&(#35 Pad) $48.00 $39.95     PCK600A GENUINE OEM Replacement Aprilaire Water Distribution Tray(only) Fits Model 600 (4331) $18.00 $14.99     PCK760 GENUINE OEM Replacement Aprilaire Water Distribution Tray & Scale Control Top plus Water Panel for model 700, 760, 760A, 768 (4236)&(4246)&(35) $48.00 $39.95     PCK760A GENUINE OEM Replacement Water Distribution Tray (only) Fits Models 700, 760 and 760A (4246) $18.00 $14.99     PCP056 GENUINE OEM Replacement Auto-trac control system for Upflow or Horiz furnaces- Eliminates humidistat Reguires sensing relay (50) $109.00 $89.95     PCP4016 GENUINE OEM Replacement Humidistat Fits all models with 4039 adapter (4016) $59.00 $49.95     PCP4017 GENUINE OEM Replacement Humidistat Adapter back plate(4039) Adapter only. $12.95 $10.95     PCP4038 Drain Spud Replacement For models 110, 112, 220, 224, 440 Aprilaire Humidifiers (4038) BERCO Number 41651 $12.00 $9.00     PCP4040 GENUINE OEM Replacement Solenoid Valve 24 v for Aprilaire model 220, 224, 440, 550(A), 560(A), 600, 700, 760(A) (4040) $69.00 $59.95     PCP4041 GENUINE OEM Replacement Solenoid Valve 110 v for Models 110-112 (4005) $84.00 $71.95     PCP4191 GENUINE OEM Replacement Solenoid Valve for Model 350, 360 (4191) $87.00 $84.00     PCP4403 Scale Control Insert with Float Chamber For Model 400 $24.95 $19.95     PCP4405 Float Cover For Model 400 $24.95 $19.95     PCP4406 Float Assembley For Model 400 $19.95 $16.95     PCP4407 Water Distribution Tray For Model 400 $27.95 $23.95     PCP4410 Water Level Sensor Assembly For Model 400 $34.95 $31.95     PCP50 GENUINE OEM Replacement Aprilaire No.50 Current Sensing Relay (No. 50) Use with by-pass humidifiers.24 Volt $49.00 $39.95     PCP51 GENUINE OEM Replacement Aprilaire No.51 Sensing relay 115V (51) Use with Humidifiers with motors. 110 Volt. $48.00 $44.95     Category: Portable Air Cleaner Filters     AA2275 Spacegard Portable filter Fits Model 2275 (275) Click the Spacegard Logo above for more Spacegard Models $24.95 $19.95     Category: Humidifiers     400 Aprilaire Humidifier (Replaces 445 )By Pass Type-Model 400 Size 14W x15 1/8 x 10 3/8 Fits Homes up to 4, 000 sq. feet.Comes with instructions, outdoor sensor, humidistat, transformer, saddle valve, solenoid and water panel Plenum opening 9 3/4W x 12 1/2H. This model needs no drain, it's a wick type Humidifier. $199.00 $159.95     400A New Aprilaire Humidifier Model 400A With FREE extra Water Panel A $15.95 Value With Digital Control Panel By-pass type Humidifier Up to 4, 000 sq.ft. of Humidification 5 Year Manufacture Warranty No Floor drain is needed with this unit NOTE. DO NOT USE WITH HEAT PUMP. $259.95 $189.95     500A1 New Aprilaire Humidifier Model 500A With FREE extra Water Panel a $15.95 Value With Digital Control Panel By-Pass type Humidifier Up to 3, 000 sq.ft. of Humidification 5 Years Manufacture Warrnity Open size 9 1/2x9 1/2" Direct Replacement for Model 550 $199.95 $137.95     500M New Aprilaire Humidifier Model 500M With Manual Controls By Pass type Humidifier up to 3, 000 sq.ft. of Humdification 5 Years Manufacture Warranity This model replaces Model 550 $189.95 $117.00     600A NEW Aprilaire Humidifier 600A With FREE Extra Water Panel a $15.95 Value By Pass Model Humidifies up to 4, 000sq.ft Size 14Wx15 1/8Hx10 3/8D Rough in size 9 3/4Wx12 1/2H" With Automatic Digital Control $219.95 $169.00     600Kit Aprilaire Humidifier Installation Kit Kit is for all by-pass humidifier Models 600, 500, 400 No kit required for model 700 "Click on Picture for material list" Kit Includes (2) 2 feet section of 6" pipe (2) 6" elbows, (1) 6" start collar 25Feet 18/2 thermostate wirer 25 feet 1/2ID Plastic drain hose 15 feet of 1/4" copper water line Sheet metal screw, ties and wirer nuts. $55.00 $45.00     600M New Aprilaire Humidifier Model 600M With Manual Controls By-Pass Type Humidifier up to 4, 000 sq.ft. of Humdification 5 year Manufacture Warranity $199.95 $139.95     700A New Aprilaire Humidifier Model 700A With FREE extra Water Panel a $15.95 Value With Digital Control Panel Power Type Humidifier With outdoor sensor Up to 4, 200 sq.ft. of Humidification 5 Year Manufacture Warranty Opening Size 14 7/8X14 3/16" $329.95 $249.95     700M New Aprilaire Humidifier Model 700M With Manual Control Power Type Humidifier Up to 4, 200 sq.ft. of Humidification 5 Year Manufacture Warranity $309.95 $229.95     H400 Aprilaire Humidifier 400 By-Pass Type Model Humidifies up to 4, 000 sq.ft Size 14Wx15 1/8Hx10 3/8D Rough-in 9 3/4Wx12 1/2H No drain needed Install in HVAC system.Comes with instructions, outdoor sensor, humidistat, Transformer, saddle valve, solenoid and water wick filter. This model needs no drain, replaces the Model 445 Last Years Model $199.00 $169.95     HVCMA Condensate Pump Little Giant Pump, Model VCMA-20-ULS, 115 Volt with saftey switch. $99.95 $79.95     Category: Whole House Air Cleaner Filters     201i Aprilaire (Spacegard) Pleated Media By BestAirPro MERV 11 Fits Model 2200, 2250, 2210 2200i SGMPR/RPS Also fits Lennox PMAC-20C,X0579 HCC10, HCF10, HCXF The Higher the MERV Rating, the more Efficient GREAT BUY. $23.95 $19.95     2102 Direct Replacement for Aprilaire 102 MERV 11 Media for 2120 Air Cleaner Size 20 x 25 1/4 x 3 1/2" $34.95 $29.95     2104 Direct Replacement for Aprilaire 104 MERV 11 Media for 2140 Air Cleaner Size 15 3/4x27 5/8x 3/1/2 $34.95 $29.95     2200 GENUINE OEM Aprilaire(Spacegard) PLEATED Media, Type 201 MERV 10 Model 2200, 2250, 2210 GENUINE OEM Replacement Filter OEM box is Tan with Blue Letters NOTE: For cabinet size 26 1/2(D) 23 3/4(H) 9 1/2(W) Plastic Box size 25x21x7 1/2" Try a Spacegard Alternative $36.50 $29.95     2200A2 GENUINE OEM Spacegard (Aprilaire) PLEATED Media Type 201 for Models 2200-2250, 2210, MERV 10 (2200X2) 2-PACK SPECIAL NOTE: For cabinet size 26 1/2(D) 23 3/4(H) 9 1/2(W) Try a Spacegard Alternative $73.00 $56.90     2200A3 OEM GENUINE OEM Spacegard (Aprilaire) PLEATED Media Type 201 for Models 2200, 2250, 2210 MERV 10 (2200X3) 3-PACK SPECIAL NOTE: For cabinet size 26 1/2(D) 23 3/4(H) 9 1/2(W)) Try a Spacegard Alternative $109.50 $76.90     2200A310 OEM GENUINE Spacegard (Aprilaire) PLEATED Media GENUINE OEM Replacement Media Filter Type 201 MERV 10 (2200X310) Model 2200, 2250, 2210 10-PACK SPECIAL NOTE: For cabinet size 26 1/2(D) 23 3/4(H) 9 1/2(W) $347.00 $249.00     2200L Aprilaire/Spacegard NEW MERV 16 by Lennox Fits Model 2200, 2250, 2210 201 Media X5424, (X5424) $139.95 $119.95     2200PU Spacegard/Aprilaire by Honeywell MERV 11 PopUP Replacement Media For Aprilaire 2200, 2250, 2210, 201 Media No assembly Required, no combs, pleat spacers. Filter literally pop-up ready to use. You do not need Plastic Housing $42.95 $36.95     2200QA 6" Pre-Assembled Aprilaire Spacegard Replacement 19 3/4 x 24 1/4 x 6 Fits Model 2200, 2250, 2210, 201, AC1i MERV 8 1 Piece system. EASY TO INSTALL $31.95 $29.95     2200QA2 6" Pre-Assembled Aprilaire Spacegard Replacement Filter for Spacegard/Aprilaire Model 2200, 2250, 2210, AC1i Style 201 merv 8 20X25X6" 2 Per Box $65.96 $53.50     2400 OEM GENUINE Aprilaire (Spacegard) Model 2400, 2410 PLEATED Replacement MEDIA Type 401 NOTE: For cabinet size 29 5/16 (D) 17 3/4 (H) 9 1/2 (W) $39.95 $35.90     2400A2 OEM GENUINE Aprilaire/Spacegard PLEATED Replacement MEDIA Model 2400, 2410 (2400X2) Type 401 MERV 10 2-PACK SPECIAL NOTE: For cabinet size 29 5/16 (D) 17 3/4 (H) 9 1/2 (W) $79.90 $63.99     2400A3 OEM GENUINE Aprilaire/Spacegard PLEATED Replacement MEDIA Model 2400, 2410 Type 401 MERV 10 (2400X3) 3-PACK SPECIAL NOTE: For cabinet size 29 5/16 (D) 17 3/4 (H) 9 1/2 (W) $119.85 $89.90     2400PU Spacegard/Aprilaire by Honeywell MERV 11 PopUP Replacement Media For Aprilaire 2400, 2410, 401 Media No assembly Required, no combs, pleat spacer. Filter literally pop-up ready to use. You do not need Plastic Housing. $42.95 $34.95     2400Qi 6" Pre-Assembled Aprilaire Spacegard 1 piece 15 3/8 x 26 15/16 x 6" Fits model 2400, 2410 type 401 MERV 8 (2400Qi) One Piece Filter. 1 Piece system. EASY TO INSTALL $31.95 $27.95     401i Aprilaire/Spacegard Media 401 Replacement for Model 2400 (SG4-PR) Type 401 Pleated MERV 11 Fits Cabinet size 29 5/16Dx17 3/4Hx9 1/2W Also fits Space-Gard 2400, Lennox PMAC-12C, X0577 $40.95 $25.95