40mm Pressure Balancing Shower Cartridge – Glacier Bay/Pioneer Replacement

Upgrade your shower experience with this **high-performance 40mm pressure-balancing cartridge**, designed for seamless compatibility with **Glacier Bay, Pioneer, Flo, Aquasource, and more** faucet models. Whether you're replacing a worn-out cartridge or addressing inconsistent water temperatures, this replacement ensures **precise, scald-free showers** by maintaining a balanced mix of hot and cold water—eliminating sudden temperature fluctuations for safety and comfort.

Engineered for durability, this cartridge features a **tight-sealing design** (3-1/8″ length × 1-5/8″ width) and is constructed from high-strength materials to withstand daily water pressure demands. Installation is straightforward with **clear 7-step instructions**, so you can replace it without professional help—saving time and money. The cartridge includes **blue and red hot/cold indicators** for quick orientation, ensuring a perfect fit with your existing valve body. Ideal for DIYers tackling dripping faucets or temperature inconsistencies, this reliable replacement extends your faucet’s lifespan while delivering consistent performance.