Part Number 21A18 having (CAGE Code 14711) and FSC 4720 Hose and Flexible Tubing in stock with ready to ship. Get an instant quote for 21A18 Hose Air Duct by Rsa Engineered Products Llc. 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.