The NIBCO PEX standard crimp tool is used to make 1-1/4-inch copper crimp ring and copper sleeve connections. The crimp tool includes a go-no-go gauge to check connections and calibrate the tool when needed. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO PEX systems provide a safe, economical and energy-efficient piping alternative for water distribution, radiant floor heating, municipal water supply, geothermal climate control, snow melt and drip irrigation. NIBCO PEX tubing, fittings, valves, and manifolds are designed to be used as a complete system, and are backed by a NIBCO INC. limited warranty.