Free shipping on orders over $69 A necessity for temperature control, this thermostatic rough-in valve will keep your water at a comfortable temperature all throughout your time in the shower. With a durable build, you can be confident that this val ve will not let you down. There are two valve sizes to choose from so you can find the perfect fit. Features: -.75" or .5" all-brass valve with integral check stops -.75" recommended for maximum water flow -TeflonŽ coated balancing shuttles -Stainles s steel water turbulating disc for precise hot and cold water mix -Overall Dimensions: 3.5" X 9" X 9.5