Kohler® Thermostatic Mixing Valve, High Flow, Series: MasterShower®, 3/4 in FNPT Inlet Connection, 3/4 in FNPT Outlet, 45 psi, 104 deg F, 17.2 gpm, Brass Body, 3-1/2 in L x 4-13/16 in W x 4-7/16 in H