ROUGH SOLD SEPARATELY: Shower trim kit only, purchase Delta's MultiChoice Universal Shower Valve separately to complete the unit (recommended rough-in valve model R10000-UNBX or R10000-UNBXHF) PROTECTION FROM SUDDEN TEMPERATURE CHANGES: The Monitor Pressure-Balanced Valve Cartridge (included) ensures a consistent shower temperature by balancing the pressure of both hot and cold water, so no sudden temperature changes from toilet flushing or running appliances SINGLE-HANDLE DESIGN: Easily adjust the water temperature with the sleek, one-handle design for total control of your shower CORROSION-RESISTANT FINISH: Our finishes are intentionally engineered for durability and tested for corrosion resistance to at least 2 times industry standards TESTED AND CERTIFIED: All Delta shower fixture finishes are third-party certified and vigorously tested under extreme conditions to ensure years of dependable use without cracking, peeling, chipping, blistering or changing color over time You can install with confidence, knowing all Delta shower fixtures are backed by Delta's Lifetime Limited Warranty