AMES by WATTS® Reduced Pressure Zone Assembly, Straight Pattern, Series: 4000B-FP, 2 in Nominal, Grooved, 175 psi, 33 to 180 deg F, Resilient Seated Ball Valve, Reduced Pressure Backflow, Full Port, Media: Potable Water, Bronze Body, 21-3/8 in L x 6-1/2 in W, Domestic