Shower Drain Systems, A compact, full capacity shower drain system. Automatically turns on after the water starts, and shuts off when the water is removed. Activated by a Rule-A-Matic float switch. DIM: (L x W x H) 8 1/4 x 11 1/4 x 5 1/2inches, (L X l X H) 209.5 x 286 x 140mm. Flow Rate: 800GAL/H 3028L/H. MULTI-PORTS: Inlet Ports 3/4, 3/4, 1, 1 1/8, 1 1/2 inches; 19, 19, 25, 28.6, 38mm. Discharge 3/4 inch 19mm, RU00980 FOR 12V , Amp Draw 2.8amp , Fuse Size 5amp . RU09824 FOR 24V, Amp Draw 1.3amp, Fuse Size 2.5 amp.