Aprilaire 400 Series Humidifier

Replacement Water Panels

Maintain efficiency and prevent bacteria growth, replace your water panel 1-2 times per year.

(case of 2 Water Panels)
$33.98
Reg. $45.99, You Save 26%

Complete Tune-Up Kit

A Tune-Up kit has everything you need to get your Aprilaire 400 Series Humidifier running like new. Perform every 2-3 years.

$96.50

Tune Up Kit For Aprilaire Model 400 Series Humidifiers (Part # 4788).  This Tune-Up Kit works for whole house large bypass humidifiers - models 400, 400A, 400M.

WATCH MAINTENANCE VIDEO


This kit contains everything you need to maintain your Aprilaire humidifier.  The kit includes:

  • #45 Water Panel (QTY 2)
  • 4335 - Feed Tube Assembly
  • 4231 - Orifice (comes nested in feed tube)
  • 4004 - Inline Strainer (included in feed tube envelope)
  • Compression Nut and Ferule (included in feed tube envelope)
  • 4403 - Scale Control Insert
  • 4407 - Water Distribution Tray
  • 4406 Float Assembly (QTY 2- included inside scale control insert assembly)
  • 4405 Float Cover (included inside scale control insert assembly)

    All Other Parts

    Aprilaire Humidifier Parts
    Toll Free (866) 764-9900
    AprilaireHumidifierParts.com is a FedEx Shipping Partner Authorize.Net Merchant - Click to Verify
    Site Your Order Policy Company
    Copyright 2017 | National Trade Supply, LLC | All Rights Reserved | (866) 764-9900