Finolex SDR series sewerage pipes are specially designed for underground non- pressure applications like gravity drainage sewer flow for transportation of soil waste discharge of domestic origin, surface water (storm water) and industrial effluent. These pipes are available in sizes of 110, 125, 160 200 mm in stiffness class of SN-2, SN-4 SN-8. These pipes are self-socketed, joined with the help of solvent cement (cold welding) and available in standard length of 6 meters are brown in colour