Tanxury GP876851 Mixer Cap & Pressure Balancing Kit for Kohler K-304/K-11748

Upgrade your Kohler shower with Tanxury GP876851

Meet the GP876851 mixer cap and pressure-balancing unit kit, designed to work with Kohler shower valves across K-304 and K-11748 platforms. This replacement set aims to give you clearer control over water flow and temperature and to reduce the frustration of mismatched hot and cold water during showers.

Built with durability in mind, the kit uses a water-resistant plastic frame and brass components to stand up to everyday use and resist leaks. It is designed to operate smoothly for years, maintaining a steady, comfortable stream as you wash away soap and steam.

What makes a difference in real bathrooms is how the parts respond to everyday use. The GP876851 combines a precision mixer cap with a pressure-balancing unit so you can fine-tune how hot the water gets and how strongly it pours, without the cycle of chasing temperature or leaking valves.

Key benefits you may notice

• Precise temperature control and steady water pressure for a more confident shower
• Leak reduction through snug O-rings and quality seals
• Durable components that resist wear and provide long-lasting performance
• Seamless replacement that avoids replacing the entire shower valve
• Simple guidance included in the kit for straightforward installation and adjustment

Before installation, cleaning internal impurities and lubricating O-rings can help ensure a proper fit. The kit is designed so you don't need to rotate the cartridge during setup; instead, ensure each O-ring sits flat in its groove for a reliable seal. If hot and cold still feel off after installation, you can adjust a small screw on top to refine performance without disassembly.

What’s in the box

• GP876851 mixer cap
• Pressure-balancing unit
• GP800820 and GP77759 components
• O-rings and lubricant for smooth operation

Whether you’re refreshing an aging valve or replacing a worn-out kit, Tanxury offers a practical, non-disruptive option to improve your shower’s consistency and comfort. This is about possibilities—real-world benefits you might experience with the right fit and careful setup.