Part Number 909S-3 4 IN having (CAGE Code 79277) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 909S-3 4 IN Valve Assembly Backflow Prevente by Teledyne Technologies Inc. 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.