FeaturesFor COLD Water Only - Do Not Use In a DwellingListings NSF 14 and 61 (National Sanitation Foundation) for potable water services.ASTM D-2609 ? Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe.ASTM D-1784 ? Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.Material Lasco PVC Insert Fittings are produced from PVC Type 1 Cell Classification 12454-B.Do not use LASCO fittings for compressed air or gases.Do not test PVC piping systems with compressed air or gases.Do not use fittings with liquids not recommended by LASCO90 DegreeSize - 1.5 in.