Commercial shower system trim kit includes metal valve trim, wall supply (with 1/2 in FNPT inlet and 1/2 in NPSM male outlet), a 59 in metal shower hose, vacuum breaker, a 3-function hand shower with non-positive shutoff and a 36 in slide bar. One piece double ceramic pressure balance cartridge maintains a constant output temperature in response to changes in relative hot and cold supply pressure. Integral check valves prevent cross flow. Adjustable hot limit safety stop. Back-to-back capable. Durable valve trim with metal handle and escutcheon. Slide bar features an adjustable hand shower holder which can be set at any height or position along the T-bar and angle up to 45 deg.