Part Number A6668 having (CAGE Code 72139) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for A6668 Poppet Regulator by Huck Intl 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.