Hidove 2-Pack GP500520 Pressure Unit Cartridge for 1/2" Single-Handle Shower Valves — Compatible with GP77886 & GP71969

Compatibility: Designed for the GP500520 pressure cartridge line, this 2-pack fits 1/2" single-handle pressure shower valves and is compatible with mixer models GP77886 and GP71969. Function: The GP500520 pressure unit maintains steady water pressure and stable temperature. If the water supply is suddenly cut off, the unit closes the hot water inlet within 1 second to prevent burns. Construction: Built from - materials, the cartridge delivers strength and reliability, resists corrosion and high temperatures, and offers a long service life while addressing leakage and dripping issues. Installation: When fitting the GP500520 pressure cartridge, lubricate all rubber parts to avoid handle sticking. Note: maximum water temperature should not exceed 120 degrees. Warranty & Support: This product includes a 1-year guarantee. If you have any questions about the product or our service, feel free to contact us — we are here to help.