Filters Fast® A35PR Replacement for Filters Fast® A35WPR, AprilAire 35
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Filters Fast® A35PR Replacement for Filters Fast® A35WPR, AprilAire 35

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AprilAire 35 Replacement Water Panel Humidifier Filter

Aprilaire 35
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6 - 12 Months
Filter Life
6 - 12 Months
Prevents Mold & Fungus
Alleviates Cold Weather Symptoms
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Product Information
Filters Fast A35PR
Aprilaire 35

Keep your evaporative humidifier operating effectively with the AprilAire 35 Replacement Water Panel Humidifier Filter. The water panel slides into the scale control insert and water distribution tray, where it begins to absorb water. The aluminum mesh features a porous ceramic-type coating for enhanced absorption. Once saturated, the humidifier moves air through the filter which adds humidity to the room. Humidifiers are great for preventing mold and fungus growth, and alleviating cold weather symptoms such as cracked lips, bloody noses, sinus irritation, coughing and more. Keep cold weather symptoms at bay and replace your filter today!


  • Brand: AprilAire
  • Part Number: AprilAire 35
  • Pack Size: 1
  • UPC Number: 608819399706
  • Filter Life: 6-12 months
  • Dimensions: 10" x 13" x 1-3/4"
  • Material: Aluminum mesh

How do you install the AprilAire 35?

  1. Before replacement on all humidifiers, note humidifier control setting and turn dial to the OFF position.
  2. Move bypass damper to summer position, and press the tabs at top and bottom and pull cover off base.
  3. Clean distribution tray per instructions, and clean scale control insert using vinegar solution.
  4. Remove old AprilAire 35.
  5. Insert color side up; Inspect the plastic feed tube by gently ?exing it and looking for cracks or signs of wear. Replace tube if it is cracked, brittle, or has been damaged.
  6. Re-insert the water panel evaporative assembly and snap the cover back on the connect drain line. If the drain line cannot be cleaned, replace ADHC: (Automatic or Manual mode).
  7. Check system operation by turning the knob to TEST. With furnace blower operating, the humidifier will operate for one minute. DO NOT LEAVE IN TEST MODE AS HUMIDIFIER WILL NOT OPERATE.
  8. For controls with the change water panel indicator light, turning knob to TEST/RESET will reset the indicator manual humidifier control.
  9. Turn on the furnace blower at the thermostat. Set knob to highest setting (may or may not run depending on humidity).
  10. Set humidifier control to original position. For bypass, set to appropriate position.

How often should you replace the AprilAire 35?

  • Changing your AprilAire 35 is a very quick and easy process that should be done once every six to twelve months.

What contaminants does the AprilAire 35 reduce?

  • The AprilAire 35 reduces the formation of the following contaminants:

    • Bacteria
    • Viruses
    • Fungi
    • Dust Mites

Compatible Parts:

The AprilAire Aprilaire 35 is the correct replacement for the following part numbers:

Part Number
AprilAire 35
AprilAire 35-02
AprilAire 3502
Bestairpro a35-pr
Nordyne rp0035
RP RP-35
Ruud hc26a1008
Ruud hc26e1004
Tempstar 3242rp
Toptech tt-pad1
York s1-hupad35
No results for {X}

Compatible Models:

The AprilAire Aprilaire 35 is correct replacement for the following model numbers:

BrandModel NumberDescription
American Standard AHUMD300A Humidifier
American Standard AHUMD300ABA00B Humidifier
American Standard AHUMD500 Humidifier
American Standard AHUMD500A Humidifier
American Standard AHUMD500APA00C Humidifier
American Standard AHUMD500APA00CA Humidifier
American Standard HUMD300A Humidifier
American Standard HUMD500A Humidifier
AprilAire 350 Humidifier
AprilAire 360 Humidifier
Aprilaire 4837 MAINTENANCE KIT Humidifier
Aprilaire 4839 MAINTENANCE KIT Humidifier
AprilAire 560 Humidifier
AprilAire 5608 Humidifier
AprilAire 560A Humidifier
Aprilaire 568 Humidifier
Aprilaire 600 Humidifier
AprilAire 600A Humidifier
Aprilaire 600M Humidifier
AprilAire 700 Humidifier
Aprilaire 700A Humidifier
AprilAire 700M Humidifier
Aprilaire 760 Humidifier
AprilAire 760A Humidifier
Aprilaire 768 Humidifier
Aprilaire APRILAIRE 600 Humidifier
Aprilaire APRILAIRE 700 Humidifier
Bryant HUMBALBP 2317 Humidifier
Bryant HUMBALBP 2417 Humidifier
Bryant HUMBALBP2217 Humidifier
Bryant HUMBALBP2317 Humidifier
Bryant HUMBALBP2417 Humidifier
Bryant HUMBALFP 1318 Humidifier
Bryant HUMBALFP1318 Humidifier
Bryant HUMBALFP1418 Humidifier
Bryant HUMBBLBP 2217 Humidifier
Bryant HUMBBLBP 2317 Humidifier
Bryant HUMBBLBP 2417 Humidifier
Bryant HUMBBLBP2217 Humidifier
Bryant HUMBBLBP2217-A Humidifier
Bryant HUMBBLBP2317 Humidifier
Bryant HUMBBLBP2317-A Humidifier
Bryant HUMBBLBP2417 Humidifier
Bryant HUMBBLFP 1218 Humidifier
Bryant HUMBBLFP 1318 Humidifier
Bryant HUMBBLFP1218 Humidifier
Bryant HUMBBLFP1218-A Humidifier
Bryant HUMBBLFP1318 Humidifier
Bryant HUMBBLFP1318-A Humidifier
Bryant HUMBBLFP1418 Humidifier
Bryant HUMCCLBP2217 Humidifier
Bryant HUMCCLBP2317 Humidifier
Bryant HUMCCLFP1318 Humidifier
Bryant HUMXXLFP1518A Humidifier
Carrier 49BA00100 Humidifier
Carrier CCLFP1318 Humidifier
Carrier HUMBALFP1218 Humidifier
Carrier HUMBBCLFP1218 Humidifier
Carrier HUMCALBP 2317 Humidifier
Carrier HUMCALBP 2417 Humidifier
Carrier HUMCALBP2317 Humidifier
Carrier HUMCALBP2417 Humidifier
Carrier HUMCALFP 1318 Humidifier
Carrier HUMCALFP1318 Humidifier
Carrier HUMCCLBP 2217 Humidifier
Carrier HUMCCLBP 2317 Humidifier
Carrier HUMCCLBP 2417 Humidifier
Carrier HUMCCLBP2417 Humidifier
Carrier HUMCCLCP1318 Humidifier
Carrier HUMCCLFP 1218 Humidifier
Carrier HUMCCLFP 1318 Humidifier
Carrier HUMCCLFP1218 Humidifier
Carrier ZIHUMCCLBP2217A Humidifier
Coleman Spas S1-BP6000MC Humidifier
Coleman Spas S1-FP7000MC Humidifier
Honeywell HC26A1008 Humidifier
Honeywell HE200A Humidifier
Honeywell HE250A Humidifier
Honeywell HE260A Humidifier
Honeywell HE260B Humidifier
Honeywell HE265A Humidifier
Honeywell HE265B Humidifier
Honeywell HE300 Humidifier
Honeywell HE360A Humidifier
Honeywell HE360B Humidifier
Honeywell HE365A Humidifier
Honeywell HE365B Humidifier
Honeywell ME360 Humidifier
Idylis 0149096 Humidifier
Idylis A35-ID Humidifier
Lennox HCWB2-17 Humidifier
Lennox HCWB2-17A Humidifier
Lennox HCWB3-17 Humidifier
Lennox HCWB3-17A Humidifier
Lennox HCWBK17A Humidifier
Lennox HCWP18A Humidifier
Lennox HCWP2-18 Humidifier
Lennox HCWP2-18A Humidifier
Lennox HCWP3-18 Humidifier
Lennox HCWP3-18A Humidifier
Lennox WB2-17 Humidifier
Lennox WB217 Humidifier
Lennox WB218 Humidifier
Lennox WP2-18 Humidifier
Lennox WP218 Humidifier
Luxaire S1-BP6000MT Humidifier
Luxaire S1-FP7000MT Humidifier
Maytag 918128 Humidifier
Maytag 918129 Humidifier
Nordyne 161 Humidifier
Nordyne 191 Humidifier
Nordyne 917863 Humidifier
Nordyne 917864 Humidifier
Nordyne 919599 VISTA 714 Humidifier
Ruud RXIH-AB17A Humidifier
Source1 S1-HUPAD35 Humidifier
Tempstar HMICLB17A Humidifier
Tempstar HMICLB17B Humidifier
Tempstar HMICLF18A Humidifier
Tempstar HMICLF18B Humidifier
Toptech TT-HUM-265 Humidifier
Toptech TT-HUM-365 Humidifier
Totaline P110-LBD-2317 Humidifier
Totaline P110-LBD-2417 Humidifier
Totaline P110-LBP-2217 Humidifier
Totaline P110-LBP2217 Humidifier
Totaline P110-LBP2317 Humidifier
Totaline P110-LBP2417 Humidifier
Totaline P110-LFB1218 Humidifier
Totaline P110-LFP1218 Humidifier
Totaline P110-LFP1318 Humidifier
Totaline P110-LFP1318-A Humidifier
Totaline P110-LFP1418 Humidifier
Trane THUMD300 Humidifier
Trane THUMD300ABA00A Humidifier
Trane THUMD300ABA00B Humidifier
Trane THUMD500 Humidifier
Trane THUMD500APA00B Humidifier
York S1-BP6000MY Humidifier
York S1-FP7000MY Humidifier
No results for {X}

Customer Reviews

Total Reviews: 21 Average Rating: 4.9 / 5.0

Filtersfast Reviews on Trust Pilot external site
Terri Meyer2024-03-28

Fits great and seem to work well. I've only had it installed for a few months.

Collected by
Alicia King2024-02-17

All other filters we used leaked water since we have a humidifier on our furnace. This one doesn’t.

Collected by

It is the manufacturer's filter. Good as it gets.

Collected by

Good price and exactly what I needed for my whole house humidifier.

Collected by
W. C. Adams2023-07-23

Great product and fast delivery.

Collected by
Christine Johnson2023-04-01

Well made, well packaged, came earlier than anticipated

Collected by
Linda Benthin2022-12-22

This is my second time ordering and once again everything arrived in great shape and very timely. I will continue to use Thank you

Collected by

It works!!

Collected by
customerTom Cameron2022-10-20

Works great, but had to cut it down to size.

Collected by

Arrived quickly. Just right

Collected by
Mike C2022-05-28

This is the OEM filter which I could not find in any local stores. The original filter is thicker (more effective) than the knockoffs I was able to find.

Collected by
D.N. of Maryland2022-04-25

Affordable and quick delivery

Collected by
Dustin Keeney2022-03-02

I was happy with the product

Collected by

I'm not ready for the one I ordered to be installed yet. The previous filters have worked well.

Collected by
Robert vanvalkenburg2021-12-05

this filter is great

Collected by
Jerry B2021-12-02

Great filter

Collected by

Better prices than my local HVAC shop and never and issue with the product. I’d suggest changing shipping carriers from FedEx as they delayed delivery numerous times and then left the product out in the open in the rain versus under a covered porch.

Collected by
William Curry2021-05-04

Been using this filter for many yrs with NO problems

Collected by
Donald Hollenbeck2021-02-26

Works well.

Collected by
Rich Stoudt2021-01-05

Right filter

Collected by

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