---
product_id: 664238385
title: "AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M"
brand: "aprilaire"
price: "A$19"
currency: AUD
in_stock: true
reviews_count: 5
url: https://www.desertcart.com.au/products/664238385-aprilaire-h635ez1a-humidifier-filter-water-panel-assembly-replacement-kit-aprilaire
store_origin: AU
region: Australia
---

# 18 gallons/day humidity capacity All-in-one easy install Made in USA quality AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M

**Brand:** aprilaire
**Price:** A$19
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your whole house breathing easy with AprilAire’s seamless humidifier refresh!

## Quick Answers

- **What is this?** AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M by aprilaire
- **How much does it cost?** A$19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/664238385-aprilaire-h635ez1a-humidifier-filter-water-panel-assembly-replacement-kit-aprilaire)

## Best For

- aprilaire enthusiasts

## Why This Product

- Trusted aprilaire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Care Kit:** Includes water panel, scale control insert, and distribution tray for total system renewal.
- • **Precision Fit Guaranteed:** Custom-designed for AprilAire models 600, 600A, and 600M—perfect every time.
- • **Effortless Annual Refresh:** Slide in the fully assembled kit—no mess, no fuss, just pure performance.
- • **Breathe Healthier, Live Better:** Optimizes humidity to reduce allergens, bacteria, and viruses in your home.
- • **Trusted American Craftsmanship:** Proudly made in the USA to ensure durability and peak humidifier efficiency.

## Overview

The AprilAire H635EZ1A Replacement Kit is a genuine, all-in-one water panel assembly designed for whole-house humidifiers (models 600, 600A, 600M). Made in the USA, it delivers up to 18 gallons of evaporative humidity daily, improving indoor air quality by reducing allergens and bacteria. This easy-to-install kit includes a water panel, scale control insert, and distribution tray, ensuring your humidifier runs like new with minimal effort.

## Description

AprilAire makes maintenance easier than ever with the Humidifier Filter / Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models 600, 600A, and 600M. This all-in-one replacement kit is fully assembled for fast, simple maintenance that keeps your humidifier running like new. No need to remove scale buildup or manually clean any parts of the water panel assembly, just remove and discard the old one and slide in the replacement kit to refresh the performance of your AprilAire Whole-House Humidifier. A properly maintained water panel helps deliver balanced humidity levels throughout your home, creating an environment where dust mites, viruses, and other asthma and allergy triggers are less likely to thrive. You'll find detailed instructions on the box with helpful visuals and step-by-step guidance to make the process a breeze. AprilAire recommends replacing the water panel assembly once annually.

Review: One is really unable to write an really exciting review about humidifier filters, so I won't. I will say buying them was a very pleasant experience, not to mention one can't even find these kits in the big box stores. I worked and worked, but could not get the lime deposits off of my water panel assembly frame (the only real way to do so is to use cleaning vinegar, which is a "no-way" for me, as the smell of vinegar makes me sick. So, this kit was a no-brainer for me - just remove the front humidifier cover (this is on an Aprilaire 600 unit), then remove the thin water delivery hose from the top of the panel cage, remove old cage with old filter, replace with new cage and filter, replace water delivery hose, and replace cover - it's that easy! Aprilaire suggests you turn the unit off before doing this. I usually don't, as the whole process only takes about a minute anyway, but do what you feel comfortable doing. I bought enough to keep stocked for the next 2 winter's use. Good Luck!
Review: For anyone tired of the expensive metal frame filter pads rotting out in their older Carrier humidifier with the built-in guides approximately 14" x 10-3/4" x 2-1/4" (similar to model 49FH024121 with filter 318518-761), this kit will fit with minor modifications. To get mine to fit, I trimmed off the half round tabs on the frame openings flush to the edge lip, cut off the protruding bottom spout flush, clipped off the top of the tube guide, and about 1/2" off the top of each of the internal guides in the humidifier box to allow the distribution part of the frame to sit below the lid. No issues with the fan, bottom and top lids, water valve, and no interference with the fan. It also has the benefit of fitting the opening better so it is likely to perform better with less air going around the pad instead of through it. Good luck and hope this helps someone else.

## Features

- Genuine AprilAire Replacement Filter: This water panel assembly replacement was designed and made in the USA by AprilAire to fit Whole-House Humidifier Models 600, 600A, and 600M
- All-in-One Kit: No mess. No cleanup. Just fast, simple replacement of the water panel assembly to keep your AprilAire Whole-House Humidifier working like new.
- Healthy Humidity: By replacing the water panel assembly in your humidifier, you can enjoy the benefits of optimal humidity levels, including lower incidence of respiratory infections, minimized formation of bacteria and viruses, and preservation of household items susceptible to dry conditions
- Perfect Fit: The water panel in this assembly measures 10" H x 13" L x 1.75" W for AprilAire Whole-House Humidifier Models 600, 600A, and 600M
- Included: Fully assembled replacement kit with 35 Water Panel, Scale Control Insert, and Water Distribution Tray

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CP2WNQV6 |
| Batteries required | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (166) |
| Date First Available | 21 Mar. 2024 |
| Included components | 4330 Scale Control Insert, 4331 Distribution Tray, 35 Water Panel |
| Item model number | H635EZ1A |
| Item weight | 572 g |
| Product Dimensions | 7.32 x 27.18 x 36.68 cm; 571.53 g |

## Product Details

- **Brand:** Aprilaire
- **Capacity:** 18 G/day
- **Colour:** White
- **Operation mode:** Evaporative
- **Special feature:** All-In-One Water Panel Assembly Replacement Kit

## Images

![AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M - Image 1](https://m.media-amazon.com/images/I/41H9H7aPMKL.jpg)
![AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M - Image 2](https://m.media-amazon.com/images/I/41Mrpc-D-OL.jpg)
![AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M - Image 3](https://m.media-amazon.com/images/I/41PTPWXX8KL.jpg)
![AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M - Image 4](https://m.media-amazon.com/images/I/41wef0QctoL.jpg)
![AprilAire H635EZ1A Humidifier Filter/Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models: 600, 600A, and 600M - Image 5](https://m.media-amazon.com/images/I/51Oa5jL1XML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***S on 19 December 2025*

One is really unable to write an really exciting review about humidifier filters, so I won't. I will say buying them was a very pleasant experience, not to mention one can't even find these kits in the big box stores. I worked and worked, but could not get the lime deposits off of my water panel assembly frame (the only real way to do so is to use cleaning vinegar, which is a "no-way" for me, as the smell of vinegar makes me sick. So, this kit was a no-brainer for me - just remove the front humidifier cover (this is on an Aprilaire 600 unit), then remove the thin water delivery hose from the top of the panel cage, remove old cage with old filter, replace with new cage and filter, replace water delivery hose, and replace cover - it's that easy! Aprilaire suggests you turn the unit off before doing this. I usually don't, as the whole process only takes about a minute anyway, but do what you feel comfortable doing. I bought enough to keep stocked for the next 2 winter's use. Good Luck!

### ⭐⭐⭐⭐⭐ Review
*by T***C on 9 October 2025*

For anyone tired of the expensive metal frame filter pads rotting out in their older Carrier humidifier with the built-in guides approximately 14" x 10-3/4" x 2-1/4" (similar to model 49FH024121 with filter 318518-761), this kit will fit with minor modifications. To get mine to fit, I trimmed off the half round tabs on the frame openings flush to the edge lip, cut off the protruding bottom spout flush, clipped off the top of the tube guide, and about 1/2" off the top of each of the internal guides in the humidifier box to allow the distribution part of the frame to sit below the lid. No issues with the fan, bottom and top lids, water valve, and no interference with the fan. It also has the benefit of fitting the opening better so it is likely to perform better with less air going around the pad instead of through it. Good luck and hope this helps someone else.

### ⭐⭐⭐⭐⭐ Review
*by E***R on 20 December 2025*

OEM. Works great. Aluminum media pad. Seems to work well.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-02*