: The "standard" choice. It keeps water temperature steady by adjusting pressure. It prevents "toilet-flush" shocks where the water suddenly turns scalding.
: Necessary if you have both a tub and a shower. It directs the water from the tub spout up to the shower head. 2. The Compatibility Trap buy shower valve
The most important step is choosing the right for your household needs. : The "standard" choice
: If you want flexibility, look for "Universal" rough-in valves like the Delta R10000-UNWS , which works with most Delta trim styles. 3. Shopping and Installation Secrets How to Install a Shower Valve Kit (For Beginners) buy shower valve