A convenient package, just add PVC pipe and fittings to get a professional, fast installation. Includes 1 can each of Blue Regular PVC Cement and Purple Primer, 8 oz. Purple Primer is a professional grade, aggressive primer used to soften PVC and CPVC pipe and fitting surfaces. Clear Regular PVC cement is a professional grade, high strength PVC cement specially formulated to bond small diameter pipe and fittings thru 4". For PVC pipe and fitting applications; potable water, pressure, non-pressure, conduit, drain, duct, DWV and sewer, excluding Sch.