Part Number 1G3-4 having (CAGE Code 51034) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 1G3-4 Valve Vacuum Breaking by Fl Industries Inc Pneumotive Div. 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.