---
product_id: 24313364
title: "2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i"
brand: "upstart appliance parts"
price: "S$23"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/24313364-2-pack-replacement-hac-504-filter-for-honeywell-compatible-honeywell
store_origin: SG
region: Singapore
---

# Compact 5"x6.5"x1" size 2-Pack for extended use Traps impurities & solids 2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i

**Brand:** upstart appliance parts
**Price:** S$23
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your air game with filters that work as hard as you do!

## Quick Answers

- **What is this?** 2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i by upstart appliance parts
- **How much does it cost?** S$23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/24313364-2-pack-replacement-hac-504-filter-for-honeywell-compatible-honeywell)

## Best For

- upstart appliance parts enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Pack Durability:** Two filters mean double the freshness and longer-lasting humidifier performance—never run dry on clean air.
- • **Precision Compatibility:** Seamlessly fits 30+ Honeywell & Enviracaire models, ensuring hassle-free replacement without guesswork.
- • **Advanced Impurity Defense:** Effectively traps water impurities and dissolved solids before they become airborne, protecting your indoor air quality.
- • **Seasonal Refresh Reminder:** Optimized for quarterly replacement to maintain peak humidifier efficiency and healthier breathing environments.
- • **Trusted Value Alternative:** UpStart Appliance Parts delivers reliable OEM-level quality without the premium price tag—smart savings for savvy professionals.

## Overview

This 2-pack of HAC-504 replacement filters by UpStart Appliance Parts offers a cost-effective, high-quality solution compatible with over 30 Honeywell and Enviracaire humidifier models. Designed to trap water impurities and dissolved solids, these compact filters (5" H x 6.5" OD x 1" thick) ensure cleaner, healthier air. Regular seasonal replacement keeps your humidifier performing at its best, making this pack an essential upgrade for maintaining optimal indoor air quality.

## Description

Don't settle for generics or pay crazy prices for expensive original parts. Buy a brand you can trust. Choose UpStart Appliance Parts and get the most trusted name in America for replacement parts. Please check your filter to make sure it matches the image and description before ordering. Humidifier Filter: HAC-504 Dimensions: 5" H x 4 1/4" ID x 6 1/2" OD x 1" Thick (approximately)This Product works in or replaces the following OEM model numbers:Honeywell Honeywell HAC-504 Honeywell HAC-504AW Honeywell 63-1508 Honeywell ECM250i Honeywell DH835 Honeywell HCM-53x Honeywell HCM-54x Honeywell HCM-300T Honeywell HCM-310T Honeywell HCM-315T Honeywell HCM-330T Honeywell HCM-350 Honeywell HCM-530 Honeywell HCM-535 Honeywell HCM-535-20 Honeywell HCM-540 Honeywell HCM-550-19 Honeywell HCM-550 Honeywell HCM-551 Honeywell HCM-560 Honeywell HCM-630 Honeywell HCM-631 Honeywell HCM-632 Honeywell HCM-632TG Honeywell HCM-635 Honeywell HCM-640BW Honeywell HCM-645 Honeywell HCM-646 Honeywell HCM-650 Honeywell HCM-710 Honeywell HCM1000 Honeywell HCM1000C Honeywell HCM1010 Honeywell HCM1010C Honeywell HCM1020 Honeywell HCM2000 Honeywell HCM2000C Honeywell HCM2001 Honeywell HCM2002 Honeywell HCM2020 Honeywell HCM2050Please note: This is an UpStart Components brand replacement part, not an OEM product. This product is not affiliated with any OEM brands and is not covered under any warranties offered by the original manufacturers. Any warranties for this product are offered solely by Upstart Components. All mentions of brand names or model descriptions are made strictly to illustrate compatibility. All brand names and logos are registered trademarks of their respective owners.

## Features

- Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, Honeywell HCM-631, Honeywell HAC-504AW, Honeywell HCM-710, Honeywell HCM-315T, Honeywell HAC-504, Honeywell HCM-630, Honeywell HCM-300, Enviracaire ECM-250i, Honeywell HCM-600, Honeywell HCM-500, Honeywell HCM-2020, Honeywell HCM-2000, Honeywell HCM-1000, Honeywell HCM2000, Honeywell HCM1000, Relion RH1300, Honeywell HCM-650, Honeywell HCM-646, Honeywell HCM-645, Honeywell HCM-640BW
- Replaces Honeywell HAC504 Humidifier filter
- Traps Water Impurities & Dissolved Solids Before They Become Airborne
- For best results, change air filter at least once per season or more often depending on air quality and use.

## Product Details

- **Brand:** UpStart Appliance Parts
- **Reusability:** Disposable
- **Number of Pieces:** 2
- **UPC:** 798154047254 628586032675
- **Unit Count:** 2.0 Count

## Images

![2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i - Image 1](https://m.media-amazon.com/images/I/71KGKGA3+GL.jpg)
![2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i - Image 2](https://m.media-amazon.com/images/I/71Bghv7dvWL.jpg)
![2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i - Image 3](https://m.media-amazon.com/images/I/7143XYNoUQL.jpg)
![2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i - Image 4](https://m.media-amazon.com/images/I/61aC0EmRwCL.jpg)
![2-Pack Replacement HAC-504 filter for Honeywell - Compatible with Honeywell HCM-300T, Honeywell HCM-350, HCM-631, HAC-504AW, HCM-710, HCM-315T, HAC-504, HCM-630, HCM-300, Enviracaire ECM-250i - Image 5](https://m.media-amazon.com/images/I/71O9Lf2h9UL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    and so far - so good. They seem sturdier than the Honeywell filters I've ...
  

*by S***E on Reviewed in the United States on December 7, 2016*

I received the 2-pack replacement filters for my Honeywell Humidifier a couple weeks ago.  Put one in, and so far - so good.  They seem sturdier than the Honeywell filters I've been using.  The filter is working fine at this point, but I cannot comment yet on how long before I need to change.  I know I had to change the Honeywell filters frequently.  These replacements came in a 2-pack, which I liked.  If they continue to work well, I will definitely purchase from this supplier again.  Shipping was very quick and they came packaged well.

### ⭐⭐⭐⭐⭐ 







  
  
    FAR BETTER Than The Original Honeywell Product!
  

*by D***L on Reviewed in the United States on April 25, 2017*

Please note, this review is for the exact model/company as follows: “UpStart Appliance Parts  2-Pack Replacement HAC-504” [see pic] This, I bought from the vendor named, “Certified Battery,” which is where I'll buy more from.The first problem with the original HONEYWELL unit is it has a seam in it, which seems to fail first, by separating there sooner than it should! This one does not have a seam, so I think that is a big advantage. I am positive that this unit gets more moisture into the air, than the original also. With the original, I could never get more than a 31% reading on my hygrometer. On similar types of cold days, I get 36% with this.I would strongly recommend the following for better health, and to get more life out of it:1. Every day or two, remove from unit and flip it over. This evens out the wear, or pollutants that it traps while humidifying.2. As another reviewer said, soak it in a 50/50 mix of water and cleaning vinegar for 20-60 minutes. Do this when it starts to get that crusty feel to it. Be gentle with it, because all of these are easily destroyed when wet.3. I use a water add in solution form Walmart which is EXTREMELY CHEAP. It’s about 4 bucks and is good for a couple hundred fillings.Good luck, and Happy Humidifying!!  :-)LOL

### ⭐⭐⭐⭐⭐ 







  
  
    Good product.
  

*by L***N on Reviewed in the United States on February 16, 2017*

This is the second time I have ordered these filters.  I like them because they do a good job. What more can be said about a product except that it fulfills its purpose in an excellent way at a very reasonable cost.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-10*