The INTEWA 1 ½ “ SDS intake hose is specifically designed for use with the RAINMASTER Favorit SC Duplex and Triplex in order to meet the larger flow. It is produced from high quality EPDM rubber and it is particularly robust with an integrated double steel spiral reinforcing as well as a synthetic cord insert. Other characteristcs of the SDS 1 ½ intake line include: a narrow bending radius, UV resistance, weather-proof, and resistance to bacterial contamination.