---
product_id: 114095274
title: "Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats"
brand: "unicel"
price: "€ 107.25"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/114095274-unicel5ch-37-37-5-square-foot-media-replacement-hot-tub
store_origin: GR
region: Greece
---

# CLEAN WATER 5.3 x 9 INCHES COMPATIBLE REPLACEMENT Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats

**Brand:** unicel
**Price:** € 107.25
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into Cleanliness!

## Quick Answers

- **What is this?** Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats by unicel
- **How much does it cost?** € 107.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/114095274-unicel5ch-37-37-5-square-foot-media-replacement-hot-tub)

## Best For

- unicel enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** Perfectly designed to replace Aquaterra 303279 filters effortlessly.
- • **Spa Essential:** A must-have for every spa owner who values cleanliness and comfort.
- • **Durable Design:** Built with robust end caps and a bar handle for easy installation.
- • **Crystal Clear Waters:** Transform your spa experience with pristine water quality.
- • **High Filtration Power:** 221 pleats for maximum coverage, ensuring every dip is refreshing.

## Overview

The Unicel5CH-37 Replacement Filter Cartridge is designed to keep your spa water crystal clear. Measuring 5.3 x 9 inches, it features 221 pleats for superior filtration and is compatible with Aquaterra spas 303279. With durable end caps and an easy-to-use bar handle, this filter is essential for maintaining a pristine spa environment.

## Description

Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats

## Features

- CLEAN AND CLEAR: Keep your spa water clean with this replacement filter cartridge
- DIMENSIONS: Measure 5-5/16 inches in diameter and 9 inches tall
- COMPATIBLE FILTERS: Replaces the Aquaterra spas 303279 filter cartridge
- FILTER MEDIA: Features fine filter media with 221 pleats that can cover up to 37.5 square feet
- END CAPS: Features 1-1/2-inch male thread and MPT end cap and a bar handle top

## Images

![Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats - Image 1](https://m.media-amazon.com/images/I/61c1fNlZeFL.jpg)
![Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats - Image 2](https://m.media-amazon.com/images/I/61V4uwRShgL.jpg)
![Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats - Image 3](https://m.media-amazon.com/images/I/61RhITyWqrL.jpg)
![Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats - Image 4](https://m.media-amazon.com/images/I/61pMVcL1DLL.jpg)
![Unicel5CH-37 37.5 Square Foot Media Replacement Hot Tub Spa Filter Cartridge with 221 Pleats - Image 5](https://m.media-amazon.com/images/I/61iHFNziFcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    direct replacement
  

*by R***. on Reviewed in the United States 🇺🇸 on January 18, 2023*

works fine.

### ⭐⭐⭐⭐⭐ 







  
  
    Arrived as promised and fit perfectly.
  

*by S***R on Reviewed in the United States 🇺🇸 on July 25, 2022*

A replacement filter for a spa

### ⭐⭐⭐⭐⭐ 







  
  
    Fits Aqua Terra Grayson
  

*by S***N on Reviewed in the United States 🇺🇸 on November 12, 2020*

I’m fairly new to the spa thing and when it was time for a new filter, I had a hard time finding the right replacement. I bought this based on another review saying it would fit and doing some measurements. It’s perfect for my little Aqua Terra Grayson spa that I bought at Costco.

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**Shop now:** [https://www.desertcart.gr/products/114095274-unicel5ch-37-37-5-square-foot-media-replacement-hot-tub](https://www.desertcart.gr/products/114095274-unicel5ch-37-37-5-square-foot-media-replacement-hot-tub)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-09*