---
product_id: 295817193
title: "Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8)"
brand: "comsmart"
price: "€ 70.51"
currency: EUR
in_stock: false
reviews_count: 5
category: "Comsmart"
url: https://www.desertcart.nl/products/295817193-comsmart-cat-water-fountain-filter-for-81oz-2-4l-pet
store_origin: NL
region: Netherlands
---

# 2.4L capacity fit 8-pack value set 3-stage triple filtration Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8)

**Brand:** comsmart
**Price:** € 70.51
**Availability:** ❌ Out of Stock

## Summary

> 💦 Keep your cat’s hydration game strong with triple-filtered freshness!

## Quick Answers

- **What is this?** Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) by comsmart
- **How much does it cost?** € 70.51 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/295817193-comsmart-cat-water-fountain-filter-for-81oz-2-4l-pet)

## Best For

- comsmart enthusiasts

## Why This Product

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

## Key Features

- • **Boosts Pet Hydration & Health:** Encourages increased water intake, reducing urinary tract infection risks—because your pet deserves the best.
- • **Advanced Triple Filtration System:** Cotton, activated carbon, and ion exchange resin team up to remove hair, heavy metals, and impurities for fresher, healthier water.
- • **Easy Maintenance & Replacement Reminder:** Simply rinse before use and swap every 2-4 weeks to keep your pet’s water pristine and inviting.
- • **Precision Fit for 81oz/2.4L Pet Fountains:** Engineered exclusively for optimal compatibility—no guesswork, just perfect hydration.
- • **Bulk 8-Pack with Hygienic Sealed Packaging:** Stay stocked and stress-free with individually sealed filters that maintain freshness until use.

## Overview

The Comsmart Cat Water Fountain Filter is a premium 8-pack replacement filter designed exclusively for 81oz/2.4L pet fountains. Featuring a triple filtration system—cotton, activated carbon, and ion exchange resin—it effectively removes hair, heavy metals, and impurities to deliver clean, fresh water that promotes better hydration and reduces urinary tract infection risks. Each filter is individually sealed for hygiene and should be replaced every 2-4 weeks to maintain optimal water quality.

## Description

Cat Water Fountain Filter, Pet Fountain Filter 4 Triple Filtration System Replacement Filter

Review: Perfect
Review: use then in cat drinking fountain i change 1 every4-6 mths and the cats love the fresh water

## Features

- For 81oz/2.4L: ONLY COMPATIBLE WITH 81oz/2.4L PET FOUNTAIN. Outer diameter: 5inch, inside diameter: 1.4inch. Not compatible with 100oz/3L pet fountain. Please check your original cat water filter model before purchase.
- Including: 8-pack of pet fountain replacement filters with separate plastic sealed package.
- Material: Composed of a cotton layer,activated carbon and an ion exchange resin.They can filter hair, heavy metals, and improve the taste of the water so that pets can drink clean and fresh water, more healthier than other only have two filter materials.
- Guarding Pet Health: Our cat fountain filters provide clean, fresh water to your pet, which helps to increase water consumption and reduce the risk of urinary tract infections.
- Note: Rinse fiter with water before use. Replace fiter every 2-4 weeks.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WGN4WYB |
| Best Sellers Rank | #96,308 in Pet Supplies ( See Top 100 in Pet Supplies ) #370 in Cat Fountains |
| Brand | Comsmart |
| Country of Origin | USA |
| External Testing Certification | NSF |
| Included Components | Filter |
| Item Weight | 132 g |
| Item model number | 8 Pack |
| Manufacturer | Comsmart |
| Material | cotton |
| Net Quantity | 8 Count |
| Number of Items | 8 |
| Product Benefits | Provides clean, fresh water to increase water consumption and reduce risk of urinary tract infections |
| Product Dimensions | 35D x 35.3W x 21.8H Centimeters |
| UPC | 716253452502 |

## Product Details

- **External Testing Certification:** NSF
- **Item Weight:** 4.66 Ounces
- **Material:** cotton
- **Product Dimensions:** 35D x 35.3W x 21.8H Centimeters

## Images

![Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) - Image 1](https://m.media-amazon.com/images/I/41HB20rqSML.jpg)
![Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) - Image 2](https://m.media-amazon.com/images/I/41YDwx6yvQL.jpg)
![Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) - Image 3](https://m.media-amazon.com/images/I/41YpMrsUY9L.jpg)
![Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) - Image 4](https://m.media-amazon.com/images/I/41f6ym6-ssL.jpg)
![Comsmart Cat Water Fountain Filter for 81oz/2.4L Pet Fountain, 3 Triple Filtration System Replacement Filter (Pack of 8) - Image 5](https://m.media-amazon.com/images/I/51JG7+fax2L.jpg)

## Questions & Answers

**Q: Another seller shows the filter placement in the opposite direction with the raised portions on top. Which is correct?**
A: I found that when the smooth side is down it creates algae or mold, when the pockets are down it works much better. I guess either way would be ok since it filters the water either way, but because of the light in the bottom that is where it gets yucky

**Q: Do these come with the square sponge pre filters?**
A: The filter you are talking about (I believe) does not come with square sponge pre-filter.

**Q: what side to the filters go on?**
A: Puurrrfect Question:

Your filter pad has two sides - one side is flat and the other has four elevated pouches. 
The side that has the four elevated pouches, will go into the filtering system downwards- meaning the flat part of the filter will be faceup - towards you!! 
Make sure you rinse real good and change monthly. 

Hope that helps!

**Q: Does this fit a LinGear cat fountain?**
A: If your current filter is 5" round with a 1½" hole and about ⅜" thick, and pretty much looks like the picture. Then this filter will fit. I've been using them for several months and they appear to work fine. Neither of my cats have gotten ill or exhibit any heavy metal intoxication symptoms. They continue to prefer this fountain over the toilets.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***H on 14 June 2025*

Perfect

### ⭐⭐⭐⭐ Review
*by W***M on 1 August 2023*

use then in cat drinking fountain i change 1 every4-6 mths and the cats love the fresh water

### ⭐⭐⭐⭐⭐ Review
*by J***2 on 2 November 2024*

These are great little filters for the Comsmart pet water fountain and I appreciate being able to easily order them from Amazon. However, even though the directions on the box indicate to change every 30 days, I find changing them every few weeks is more appropriate. If you look at them closely (on the bottom) you’ll see algae and mold growth will start to grow inside the filter. This isn’t a fault of the manufacturer it’s just a hazard that comes with a filtration device that is in contact with bacteria from pet saliva, room temperatures and recycled water. It fits the fountain perfectly, it is pretty durable given the conditions it’s in and it works great to filter the water. This does not replace the need for clean drinking water for pets. This is something to use in addition to that with many of the pet fountains on Amazon. This one specifically fits the Comsmart fountain, but I’m sure there are others it may also work with - your fountain will come with a filter and indicate when to change it and which will work to replace it.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/295817193-comsmart-cat-water-fountain-filter-for-81oz-2-4l-pet](https://www.desertcart.nl/products/295817193-comsmart-cat-water-fountain-filter-for-81oz-2-4l-pet)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*