---
product_id: 545256411
title: "GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black"
brand: "nipponasia"
price: "€ 141.47"
currency: EUR
in_stock: true
reviews_count: 5
category: "Nippon Asia"
url: https://www.desertcart.sk/products/545256411-gp876851-mixer-cap-and-pressure-balancing-unit-kit-compatible-kohler
store_origin: SK
region: Slovakia
---

# Sleek black finish for modern aesthetics Precision pressure-balancing tech Includes GP800820 cartridge & GP77759 mixer cap GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black

**Brand:** nipponasia
**Price:** € 141.47
**Availability:** ✅ In Stock

## Summary

> 🛁 Upgrade your shower game with precision and style!

## Quick Answers

- **What is this?** GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black by nipponasia
- **How much does it cost?** € 141.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/545256411-gp876851-mixer-cap-and-pressure-balancing-unit-kit-compatible-kohler)

## Best For

- nipponasia enthusiasts

## Why This Product

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

## Key Features

- • **Durable Metal Build:** Crafted from premium metal ensuring long-lasting reliability and performance.
- • **Leak & Pressure Fixer:** Engineered to eliminate leaks and stabilize water pressure, upgrading your shower experience.
- • **Smooth Lever Operation:** Enhanced mixer cap design delivers silky smooth handle movement—goodbye stiff controls.
- • **Plug & Play Compatibility:** Designed to fit Kohler K-304 and K-11748 valves for hassle-free installation.
- • **Seamless Temperature Control:** Effortlessly balance hot and cold water for a perfect shower every time.

## Overview

The GP876851 Mixer Cap and Pressure-Balancing Unit Kit is a high-quality replacement part compatible with Kohler K-304 and K-11748 shower valves. Featuring a durable metal construction and a sleek black finish, it includes the GP800820 cartridge and GP77759 mixer cap to ensure smooth lever operation, precise temperature control, and reliable pressure balancing. Designed for easy installation, this kit effectively resolves leaks and unstable water temperature issues, revitalizing your shower with modern performance.

## Description

Mixer and Pressure-Balancing Unit Kit replace for Kohler Part GP876851, including Replacement for GP800820 and GP77759, replace for Kohler part GP76851, compatible with Kohler shower valve K-304 and K-11748.

Review: This is a great replacement to my Kohler 28 years old shower mixer valve. Replacement was easy. I was wondering why to holes in the back were oval, not round like the original but it still works great. The lever now moves much smoother than the original Kohler. Highly recommended
Review: An easy change over and it works great.

## Features

- 1. Part Number:GP876851
- 2. Includes cartridge GP800820 and mixer cap GP77759
- 3. Compatible with Kohler shower valve K-304 and K-11748 platforms
- 4.Features: The GP876851 Mixer and Pressure-Balancing Unit Kit control pressure, adjusting temperature, solve leaks and unstable hot and cold water problems.
- 5.Notice:Please pay attention to the correct installation of the O-ring, the O-ring needs to be placed flat in the groove, dont rotate the cartridge, just put it directly.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P1J3M2Q |
| Brand | nipponAsia |
| Country of Origin | USA |
| Exterior Finish | Black |
| Inlet Connection Type | Threaded |
| Item Dimensions LxWxH | 15.2 x 8.9 x 7.6 Centimeters |
| Item Weight | 240 g |
| Item dimensions L x W x H | 15.2 x 8.9 x 7.6 Centimeters |
| Item model number | GP876851 |
| Manufacturer | nipponAsia |
| Material | Metal |
| Net Quantity | 1.0 Count |
| Number of Ports | 2 |
| Outlet Connection Type | Female Iron Pipe |
| Product Dimensions | 15.24 x 8.89 x 7.62 cm; 240 g |
| UPC | 791541880762 |

## Product Details

- **Brand:** nipponAsia
- **Exterior Finish:** Black
- **Inlet Connection Type:** Threaded
- **Item dimensions L x W x H:** 15.2 x 8.9 x 7.6 Centimeters
- **Manufacturer:** nipponAsia
- **Material:** Metal
- **Number of Ports:** 2
- **Outlet Connection Type:** Female Iron Pipe
- **UPC:** 791541880762

## Images

![GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black - Image 1](https://m.media-amazon.com/images/I/71K+tNGxBhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by I***T on 25 August 2025*

This is a great replacement to my Kohler 28 years old shower mixer valve. Replacement was easy. I was wondering why to holes in the back were oval, not round like the original but it still works great. The lever now moves much smoother than the original Kohler. Highly recommended

### ⭐⭐⭐⭐⭐ Review
*by T***N on 19 August 2024*

An easy change over and it works great.

### ⭐ Review
*by J***Z on 28 July 2024*

I bought this assembly kit so that it stops the leaking faucet, but it is still leaking.

## Frequently Bought Together

- GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black
- DANCO Waterproof Silicone Faucet Grease | Silicone Sealant | Plumbers valve Grease for O-rings | 0.5 oz. | 1-Pack (88693)

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**Shop now:** [https://www.desertcart.sk/products/545256411-gp876851-mixer-cap-and-pressure-balancing-unit-kit-compatible-kohler](https://www.desertcart.sk/products/545256411-gp876851-mixer-cap-and-pressure-balancing-unit-kit-compatible-kohler)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-12*