Part Number 4PR3 having (CAGE Code 27775) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 4PR3 Regulator Pressure by Haws Corporation Dba Haws Company. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.