Designed for Twin Gas Welding Hose Hannay's N400 Series gas welding reels handle 1/4" or 3/8" oxygen/gas dual hose in lengths of up to 100 ft, and feature 2 swivel joint inlets and 2 outlet risers to handle twin gas welding hose. The N400 has a narrow frame design that is ideal for limited space environments and operates at pressures to 300 psi (21 bar) and at working temperatures from -40 degrees to +200 degrees Fahrenheit (-40 degrees Celsius to +93 degrees Celsius). Additional features include standard inlets that are 90 degree ball bearing swivel joints with 1/2" female NPT threads, standard outlets are male 9/16" or18 threads and a heavy-duty spring motor provides self-contained rewind power.