Square plaster guard in 90 degree cut can snapping into place with none tool required to remove or install Make of brass, rustproof, wear resistance and enduring pressure caps allows for air or water testing before the Valves cartridges is installed and easy access for flushing systems The universals Valves gives you the flexibility to upgrades your shower decor without having to change your plumbing It ' s suitable for most single function, double function or double function thermostat trim kits Meets the needs of the most common plumbing way and is Perfect for shower installations with bathtubs and bathtub heads, Manufacturer: JDNH