---
product_id: 283435538
title: "Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filters HAC-504, HAC-504AW & Honeywell Filter A | Replacement for HCM 350 Filters & Cool Mist Humidifiers"
brand: "durabasics"
price: "$128.87"
currency: USD
in_stock: true
reviews_count: 13
category: "Durabasics"
url: https://www.desertcart.us/products/283435538-durabasics-4-pack-of-premium-humidifier-filters-compatible-with-honeywell
store_origin: US
region: United States of America
---

# Optimized wick design for max moisture 4-pack upgraded blue pre-filters Rigid absorbent paper reduces sagging Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filters HAC-504, HAC-504AW & Honeywell Filter A | Replacement for HCM 350 Filters & Cool Mist Humidifiers

**Brand:** durabasics
**Price:** $128.87
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filters HAC-504, HAC-504AW & Honeywell Filter A | Replacement for HCM 350 Filters & Cool Mist Humidifiers by durabasics
- **How much does it cost?** $128.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/283435538-durabasics-4-pack-of-premium-humidifier-filters-compatible-with-honeywell)

## Best For

- durabasics enthusiasts

## Why This Product

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

## Key Features

- • **Wide Compatibility:** Seamlessly fits Honeywell HCM350 series and more—upgrade your humidifier without the hassle.
- • **Quadruple Value Pack:** Four premium filters to keep your air fresh longer—never run dry on comfort.
- • **Durability Meets Design:** Rigid absorbent paper construction prevents sagging, ensuring consistent humidification without compromise.
- • **Blue Pre-Filter Advantage:** Catches large particles upfront for cleaner, healthier air every breath you take.
- • **Engineered for Peak Performance:** Optimized wick design maximizes moisture output, transforming your space into a breathable oasis.

## Overview

Durabasics 4 Pack Premium Humidifier Filters are engineered replacements compatible with Honeywell HAC-504 series and HCM350 models. Featuring upgraded blue pre-filters and rigid absorbent paper, these wick filters maximize moisture output while reducing sagging for consistent performance. Ideal for maintaining cleaner, healthier air in bedrooms and living spaces, this value pack ensures long-lasting freshness and easy installation.

## Description

HEPA Replacement Filters Visit the Store HEPA Replacement Filters Visit the Store Humidifier Filters Visit the Store Humidifier Filters Carbon Pre-Filters Visit the Store Carbon Pre-Filters

Review: Never A Problem! - I have been using dura basics for over two years and they have never let me down. They fit perfectly, and there's never any odor or problems. Also delivery is super fast. I wish everything were this easy and reliable in my life.
Review: Long lasting! - Nice filters, as good as the one that came with system at a good value.

## Features

- 4 Piece Value Pack - 4 filters compatible with Honeywell replacement wicking Filter A for your Honeywell HAC-504, HAC-504AW, and HAC-504V1 humidifier filters. Made from high-quality, durable material with an optimized filter design to maximize your compatible Honeywell HCM 350 filter moisture output
- Upgraded Blue Filters - Our upgraded filters compatible with Honeywell HCM350W filter feature a blue pre-filter to catch large particles before they enter your air, for even higher air quality
- Rigid Construction To Reduce Sagging - Our replacements for Honeywell humidifiers filter, Honeywell humidifiers filters and Honeywell cool humidifier filter are constructed with rigid absorbent paper to improve our filter's structure once wet and reduce sagging
- Compatible With Honeywell Humidifier Filter Model HCM350W & More - Fits HCM350W, HCM-350, HCM350, HCM-350B, HCM350B, HCM-350W, HCM-350B-CST, HCM-300, HCM300, HCM-300T, HCM300T, HCM-305T, HCM305T, HCM-310T, HCM310T, HCM-315T, HCM315T, HCM305BCST, HCM-450B-CST, HCM450BCST, HCM-500, HCM500, HCM-530, HCM530, HCM-535, HCM353, HCM-535-20, HCM53520, HCM-540, HCM540, HCM-550, HCM550, HCM-550-19, HCM55019, HCM-551, HCM551, HCM-560, HCM560, HCM-600, HCM600, HCM-630, HCM630, HCM-631, HCM631
- Usage Tips - For best results, flip your compatible Honeywell humidifier filter HAC 504 replacement daily and only fill humidifier tank with distilled water. Hard water degrades ALL compatible Honeywell humidifier filters and yellows them prematurely. Soak in cool water before replacing to ensure uninterrupted moisture output.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08F9DSZL8 |
| Best Sellers Rank | #12,582 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Humidifier Replacement Wicks #124 in Humidifiers |
| Brand | Durabasics |
| Brand Name | Durabasics |
| Capacity | 5.3 Liters |
| Color | Blue-4 Pack |
| Control Method | Touch |
| Customer Reviews | 4.6 out of 5 stars 5,031 Reviews |
| Filter Type | Wick |
| Included Components | 4 premium humidifier filters |
| Item Dimensions D x W x H | 26"D x 23"W x 17"H |
| Item Shape | Round |
| Manufacturer | Durabasics |
| Material | Paper |
| Model Name | Cool Mist Humidifiers |
| Model Number | HAC-504 |
| Operation Mode | Manual |
| Other Special Features of the Product | cool_mist |
| Part Number | HAC-504 |
| Power Source | Corded Electric |
| Product Dimensions | 26"D x 23"W x 17"H |
| Room Type | Bedroom |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | cool_mist |
| UPC | 852332008526 |
| Unit Count | 4.0 Count |
| Wattage | 350 watts |

## Product Details

- **Brand:** Durabasics
- **Special Feature:** cool_mist
- **Color:** Blue
- **Operation Mode:** Manual
- **Room Type:** Bedroom

## Images

![Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filters HAC-504, HAC-504AW & Honeywell Filter A | Replacement for HCM 350 Filters & Cool Mist Humidifiers - Image 1](https://m.media-amazon.com/images/I/81yD0UPMULL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: What's the benefit of a humidifier filter?**
A: Our filters ensure an optimal amount of moisture is evaporating into your air. This improves your air's humidity to support good sleep, healthy sinuses, and a happier home for you and your loved ones.

**Q: Which humidifiers does this fit?**
A: Our premium HAC-504 filters are compatible with Honeywell HCM-350, HEV-355, HCM-710, HCM-315, HEV-312 and many other HCM and HEV series models.

**Q: How often do I need to replace my filter?**
A: Replace your filter once it begins to harden and/or yellow. Hard tap water means it has more minerals. Your filter absorbs these minerals and will shorten the life of your filter versus a household with access to soft water.

**Q: How can I maximize the life of my filter?**
A: While not necessary, you can maximize the life of your filter by using distilled, bottled water or filtered water from your tap. Additionally, flip your filter over daily to ensure the entire filter stays moist.

**Q: How do I install a new filter?**
A: We recommend pre-moistening the filter by running it under water until it is soaked though. Once soaked, remove the cover of your machine, take out the old filter, and replace it with the new, pre-soaked filter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Never A Problem!
*by K***T on May 13, 2026*

I have been using dura basics for over two years and they have never let me down. They fit perfectly, and there's never any odor or problems. Also delivery is super fast. I wish everything were this easy and reliable in my life.

### ⭐⭐⭐⭐⭐ Long lasting!
*by J***P on April 6, 2026*

Nice filters, as good as the one that came with system at a good value.

### ⭐⭐⭐⭐ Works Well
*by L***R on May 2, 2026*

Fit my humidifier perfectly. Seem to last a long time. Relatively easy to clean, when done on a regular basis.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-08*