ATESMO GP500520 Pressure Balancing Unit Replacement — Compatible with Kohler Shower Cartridges

Experience steadier showers with the ATESMO GP500520 pressure balancing unit. Designed as a reliable replacement for Kohler Rite-Temp valves, this core helps maintain a comfortable mix of hot and cold water even when supply pressures shift. Instead of unpredictable bursts of heat or cold, you can expect a more consistent stream that feels soothing and controlled.

Whether you're mid rinse or sharing a bathroom, a steady shower temp makes everyday routines smoother. The GP500520 unit uses a ceramic control mechanism to respond to pressure changes and automatically adjust cold or hot water flow, keeping the mixed temperature near your preset target.

Key Benefits and Compatibility

• WIDE COMPATIBILITY It serves as a great replacement for Kohler one-half inch pressure balance valves, compatible with KOHLER GP500520, GP77759, GP77886, and GP71969 valve mixers.
• CONSTANT PRESSURE Works like the original unit to keep the shower room pressure steady and the temperature predictable.
• TEMPERATURE CONTROL The balance core moderates final water temperature without allowing dangerous spikes.
• NO LEAKAGE Built with durable materials; includes O-rings for a secure seal and long-lasting performance.
• EASY TO INSTALL A straightforward swap from the existing cartridge — no professional plumber required, just basic tools and care.

What’s Included and Practical Tips

• 1 × GP500520 pressure balancing unit valve
• O-rings for the valve core and Rite-Temp valve assemblies
• Reference grease recommended for full application
• Tip: There are no dedicated cold hot outlet provisions, so you can mount the unit on either side to suit your setup

Tip: This unit is designed to be a direct replacement for Kohler 1/2 inch single-handle valves and aligns with popular Kohler valve models, helping you restore calm water flow without changing the bathroom layout. While it can be installed by DIY enthusiasts, always ensure the water is fully shut off and the connections are snug before testing for leaks. With proper installation, you’ll notice better flow behavior and reduced temperature surprises during showers.