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Aprilaire Water Panel 45 (2-pack)

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Aprilaire Water Panel 45 (2-pack)

Quick Overview

Fits Aprilaire 400 series humidifiers 400, 400A, and 400M
5 1


The Aprilaire Water Panel 45 is a quality replacement filter for your Aprilaire 400 series humidifier. Also known as a media filter, humidifier pad, and evaporator pad, this product is paramount to deliver proper humidity to your home. Appropriate humidity in your home during dry heating seasons can alleviate allergy and asthma symptoms. Beyond these, it can also assist against dry nose, itchy skin, static shocks, and warped or cracked wood floors. To ensure the best performance the pad should be replaced twice a season and is available here as a complete-season 2-pack.

  • Ships same day!
  • Replace twice a season
  • Humididty in your home helps maintain a healthy respitory system
  • Pad replacement removes risk of water leakage into your furnace
  • Made in the U.S.A.
  • Genuine OEM Product
  • Installation Guide for AA_45_WP_FILTER


Used In Brands Aprilaire
Manufacturer's Id 4959622
UPC 686720200458
Actual Size (in) 12 3/4 inches (height) x 10 inches (width) x 1 3/4 inches (thickness)
Actual Size (cm) 32.39 x 25.4 x 4.45
Media Layered Paper and Aluminum
Filter Life (months) 6 months
Additional Information Replace twice a season. Top edge of filter is marked.

The AA_45_WP_FILTER is comparable with the following part numbers


Fits the Following Model Numbers

400 400A
400M Herrmidifier 500
Herrmidifier 500U Herrmidifier 707
Herrmidifier 707-2 Herrmidifier 707SM
Herrmidifier 707TW HER500

Replacement for the Following UPC