Last updated at 07/06/2026 22:21:21
Aprilaire 4788 Maintenance Kit for Model 400/400A
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Aprilaire 4788 Maintenance Kit for Model 400/400A
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
AprilAire 4788 Maintenance Kit with Water Panel 45
Delivery $29.86
AprilAire 4788 Maintenance Kit with Water Panel 45
Delivery $29.90
AprilAire 4788 Humidifier Maintenance Kit with Water Panel Model No. 45 Humidifier Replacement Filter for AprilAire Whole-House Humidifier Models:
Delivery between 12–16 June $15.52
AprilAire 4788 Humidifier Maintenance Kit with Water Panel Model No. 45 Humidifier Replacement Filter for AprilAire Whole-House Humidifier Models:
Delivery between 12–16 June $15.52
Aprilaire 4788 Maintenance Kit for Model 400/400A
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Aprilaire 4788 Maintenance Kit for Model 400/400A
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
AprilAire 4788 Maintenance Kit with Water Panel 45
Delivery $29.86
AprilAire 4788 Maintenance Kit with Water Panel 45
Delivery $29.90
AprilAire 4788 Humidifier Maintenance Kit with Water Panel Model No. 45 Humidifier Replacement Filter for AprilAire Whole-House Humidifier Models:
Delivery between 12–16 June $15.52
in 6 offers
The lowest price for Aprilaire Maintenance Kit right now is $193.39 at FiltersFast.com, compared across 3 retailers.
The all-time low was $192.84 on 6 June 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 7 June 2026.
Aprilaire Maintenance Kit
