Delta Dryden 17 Series Dual-Function Shower Trim Kit with Single-Spray Touch Clean Shower Head, Chrome T17251 (Valve Not Included) LIFETIME LIMITED WARRANTY. You can install with confidence, knowing this Delta shower head and shower trim kit are backed by Delta Faucet's Lifetime Limited Warranty 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-UNBXHF) INTENSELY POWERFUL. Immerse yourself in the steady, intensely powerful full body spray with forceful streams of water to satisfy all of your showering needs PROTECTION FROM SUDDEN TEMPERATURE CHANGES. The Monitor Pressure-Balanced Valve Cartridge (included) ensures a consistent shower temperature, while the dual-function shower handle allows you to control the water temperature and volume separately for maximum control EASY TO CLEAN. Delta shower heads with Touch-Clean spray holes allow you to quickly and easily wipe away calcium and lime build-up with a touch of a finger, so no need to soak or use chemical cleaners