The Apollo Combo PEX Stainless Steel Sleeve Tool is a 2in1 tool designed to secure 12 and 34 in stainless steel sleeves not included into place within PEX piping systems There are no loose components, jaws to change or adjustments to be made to create either size connection Connections may be checked for security using the GoNoGo gauge The ApolloPex system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex