Radnor 64003900 916″ – 18 B Rh Brass Oxygen Hose Nut

B sized Hose Nut for Oxygen, 916″-18 RH. All Radnor fittings are manufactured to CGA-standards. In addition to CGA-numbers, many popular fittings commonly are refered to as A-size, B-size, C-size and D-size. These letter designations are included in the product discriptions.