Features: * Apply inside the copper connector, fit in the copper pipe and within seconds a permanent leak proof seal will occur * Pressure may be applied after two minutes * Can withstand pressures at 10000 PSI flow and 500 PSI contained * Can withstand temperatures from -60 degrees F to +300 degrees F What"s In The Box: * Comstar 10-100 Copper Lock No-Heat Solder - 2 oz.