Part Number 4-188648 having (CAGE Code D9786) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 4-188648 Valve Diaphragm Stop by Linde Canada 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.