Do it Best clear PVC solvent cement is designed for use on PVC pressure pipe and fittings up to 4 in. diameter for Sch. 40 and 2 in. diameter for Sch. 80. This regular-bodied, fast-setting cement is NSF certified for use in potable water, sewer and drain waste, and vent systems. UPC listed. Meets ASTM D-2564.