Delta Tetra Matte Black 3.75-in Universal Bathtub/Shower Pressure balance trim 0.5-in -ID

Tetra Matte Black 3.75-in Universal Bathtub/Shower Pressure balance trim 0.5-in -ID. Monitor® pressure balance valve keeps water temperature within a safe ±3.6° F (±1.7° C), helping to protect you from sudden changes in hot or cold water pressure. Trim kit only, must order MultiChoice® Universal valve rough (R10000) separately to complete the unit. Single function cartridge. Temperature only controlled with handle. ADA Compliant. Backed by Delta Faucet's Lifetime Limited Warranty