The ApolloPEX Stainless Steel PEX 1-Hand Pinch Clamp Tool provides extreme versatility. It is designed for the creating secure stainless steel pinch clamp connections in combination with PEX barb fittings within PEX piping systems in sizes ranging from 3/8 in. to 1 in. The ApolloPEX Stainless Steel PEX 1-Hand Pinch Clamp tool is compatible with 3/8 in. 1/2 in. 3/4 in. and 1 in. LED indicator visually confirms a complete connection has been made. 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.