3/4inch male thread to 1/2inch female thread, suitable for conversion between sizes of pipe joints between and liquids to meet connection between different connection. After installation, connection is firm and not easy to leaks or burst. Suitable for pipe, radiators, drain pipe, water tanks, sewage sanitaries equipment, heating hot and cold water supply drinking water solars The adapter 3/4inch to 1/2inch is easy to installation and use and can be installed at any position on horizontal, vertical and diagonals pipe. Make of brass materials with solid structure, resistance and rusts resistance, highly temperature resistant.