Part Number EFL-30B having (CAGE Code 28478) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for EFL-30B Valve Calibrated Flow by Deltrol Corp Deltrol Controls Di. 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.