Jackson - 118500A Valve, Press Reduc -; Water 1/2. WATER PRESSURE REDUCING VALVE, 1/2" NPT, BRONZE, WATTS, 50 PSI DELIVERY PRESSURE. FIELD ADJUSTABLE FROM 25-75 PSI. CAPABLE OF 300 PSI AT MAX WATER TEMP 160 F, JACKSON DISHWASHER 10AB, 10APRB VULCAN DISHWASHER SERIES: A.