MultiChoice® Universal valve body only. Accepts single, dual, or dual thermostatic cartridge. Cartridge ships with trim. Back-to-back capability. Features blocked tub port & PEX shower riser. Model must be ordered in full case quantity of 12. Backed by Delta Faucet's Recertified 10-year Limited Warranty | Delta® Rough-In MultiChoice Shower Only Pre-Fab (Recertified), R10000-PFS-MF