---
product_id: 488779278
title: "Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2\" Single Handle Valves"
brand: "atesmo"
price: "$4646"
currency: MXN
in_stock: true
reviews_count: 5
url: https://www.desertcart.mx/products/488779278-kohler-pressure-balancing-unit-cartridge-with-o-ring-2pcs-replacement
store_origin: MX
region: Mexico
---

# Constant Pressure Easy Installation Wide Compatibility Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves

**Brand:** atesmo
**Price:** $4646
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate Your Shower Experience with Effortless Control!

## Quick Answers

- **What is this?** Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves by atesmo
- **How much does it cost?** $4646 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/488779278-kohler-pressure-balancing-unit-cartridge-with-o-ring-2pcs-replacement)

## Best For

- atesmo enthusiasts

## Why This Product

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

## Key Features

- • **DIY Friendly:** No plumber needed—install with ease and confidence!
- • **Safety First:** Instantly balances pressure to prevent scalding or freezing.
- • **Durable Design:** Crafted from high-quality materials to ensure longevity and reliability.
- • **Leak-Proof Assurance:** Includes O-rings to eliminate leaks and maintain optimal performance.
- • **Unmatched Versatility:** Compatible with multiple Kohler models for seamless integration.

## Overview

The ATESMO Pressure Balancing Unit Cartridge is a high-quality replacement designed for Kohler shower systems. This 2-piece set ensures constant water pressure and temperature control, preventing sudden temperature changes. Made from durable ceramic materials, it includes essential O-rings for leak prevention and is easy to install without professional help.

## Description

Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves

## Features

- 🚿WIDE COMPATIBILITY - The shower cartridge replacement is a great replacement for Kohler pressure balancing valve with a 1/2"single handle for most Kohler shower parts, compatible with KOHLER GP500520, GP77759, GP77886, and GP71969 valve mixers
- 🚿CONSTANT PRESSURE - Work as well as Kohler gp500520 and make sure the pressure in the shower room is constant and preset the temperature. If the cold water suddenly cuts off during use, the pressure-balancing unit will automatically close the hot water inlet within 1 second to avoid burn
- 🚿TEMPERATURE CONTROL - The shower cartridge controls the water temperature while allowing the maximum safe water temperature. What you get is no longer frozen cold water or scalding hot water
- 🚿NO LEAKAGE - The shower cartridge replacement is made of high-quality material for enhanced durability. All rubber gasket O-rings are included in the package for the valve core and rite temp pressure balancing valve which will not cause valve leakage, Including O-rings for GP77759, GP77886, GP71969 caps, and GP30320 plate
- 🚿EASY TO INSTALL - The shower cartridge replacement is easy to replace original accessories including Kohler shower cartridge and no need for professional plumbers, just make sure to turn off the water before you start, you can also use some grease for full application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ATESMO |
| Part Number | CA02 |
| Package Dimensions | 6.4 x 6.4 x 6.4 cm; 159 g |
| Item model number | CA02 |
| Colour | 2pcs |
| Material | Ceramic |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 159 g |

## Images

![Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves - Image 1](https://m.media-amazon.com/images/I/51vWHgcofML.jpg)
![Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves - Image 2](https://m.media-amazon.com/images/I/717fseP2BiL.jpg)
![Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves - Image 3](https://m.media-amazon.com/images/I/71MFax7QtLL.jpg)
![Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves - Image 4](https://m.media-amazon.com/images/I/71UfhwOGM-L.jpg)
![Kohler Pressure Balancing Unit Cartridge with O-ring, 2PCS Replacement Model GP500520 Fit Compatible with Kohler Shower Valve, Rite-Temp Bath and Shower 1/2" Single Handle Valves - Image 5](https://m.media-amazon.com/images/I/71StQAsLrzL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    valve leak not due to the pressure unit
  

*by A***N on Reviewed in the United States on 26 November 2023*

After installing, the valve leaked. Turns out it had nothing to do with the replacement cartridge. After much on line searching, I found the valve housing was corroded where the main o-ring seals.  There was scaling and green corrosion on the brass housing causing a rough surface and a leak at the o-ring seal.  I used a light acid solution to remove most of the corrosion and scale then I used 800, 1000, 3000, 5000, 7000 and 10,000 grit wet paper to polish the surface.  Added a little silicon grease to the o-ring and valve surface, reassembled and the leak was gone.  The unit functions perfectly.  I would not be surprised if some of the "leaking" problems reported by others were not due to this issue.Also, I disassembled the failed pressure cartridge out of curiosity and found the internal pressure diaphragm was completely rotted away causing random mixing and unstable/unpredictable temperatures.  This failure also caused the nearby bathroom sink to have hot water coming from the cold faucet! That was a very bizarre and confusing symptom.Hope this helps someone.

### ⭐⭐⭐⭐ 







  
  
    It works I have control of the hot and cold.
  

*by L***N on Reviewed in Canada on 6 January 2022*

It is not well finish and the water still drips, not as bad as before. I cleaned all the surfaces but it still leaks.

### ⭐⭐⭐⭐⭐ 







  
  
    Shower Pressure Balancing Unit (PBU)
  

*by R***. on Reviewed in the United States on 9 February 2024*

Easy to install without having to pay for a plumber at a high cost. My hot water was not working but now it is working fine after installing the PBU myself.

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-08*