Oatey 30770 House Primers, 16 oz, Purple Very Aggressive Purple-tinted primer for use on PVC and CPVC pipe and fittings. Lo-V.O.C. Solvent Cement meets California South Coast Air Quality Management District (SCAQMD) 1168/316A or BAAQMD Method 40 and various environmental requirements. Meets ASTM F656 Recommended for Commercial and Large diameter thermoplastic piping systems, specifically CPVC Sch. 40 / 80 Ideal for use in cold weather applications. Removes surface dirt, grease and grime as well as softens the pipe surface to allow a fast, secure solvent weld For use in areas where plumbing code calls for verification that a primer has been used. N SF and IAPMO Listed Very Aggressive Purple-tinted primer for use on PVC and CPVC pipe and fittings Lo-V.O.C. Primer meets California South Coast Air Quality Management District (SCAQMD) 1168/316A or BAAQMD Method 40 and various environmental requirements Recommended for Commercial and Large diameter thermoPlastic piping systems, specifically CPVC Sch. 40 and Sch. 80 Ideal for use in cold weather applications Removes surface dirt, grease and grime as well as softens the pipe surface to allow a fast, secure solvent weld