Model HX-3B-HQA-4 Inferno® quick connect A hose connection kit for acetylene is constructed from industrial grade materials. It is designed for long service life using swirl combustion technology. It is engineered within a quality-driven, precision manufacturing process. They provide the perfect flame for even heating. The kit includes Harris® HWA-4 handle, has B or MC tank connections, Model 601 regulator, inferno brazing tip(s), #5 chrome wrench for adjusting and a 3/16 in x 12 ft red hose with A and A connection fittings.