The RP-CART35WT is a 35 mm pressure balance ceramic cartridge designed for the F-5721-3 faucet. Featuring pressure balance technology, it maintains a consistent water flow and temperature even when system pressure fluctuates. Built with high-grade ceramic discs and durable materials, it provides a watertight seal and long-lasting performance. This cartridge helps prevent sudden temperature changes, ensuring a safe and comfortable showering experience.