Inert Arc Hose and Torch adapter, B size 5/8"-18 UNF RH Male to 1/4" NPT Male. All RADNOR™ fittings are manufactured to CGA-standards. In addition to CGA-numbers, many popular fittings commonly are referred to as A-size, B-size, C-size and D-size. These letter designations are included in the product descriptions.
