Features . ASTM D 1784 Rigid Poly Vinyl Chloride PVC Compounds and Chlorinated Poly Vinyl Chloride CPVC Compounds. ASTM D 2466 Socket Type Poly Vinyl Chloride PVC Plastic Pipe Fittings Schedule 40. ASTM F 1970 Standard Specification for Special Engineered Fittings Appurtenances or Valves for use in Poly Vinyl Chloride PVC or Chlorinated Poly Vinyl Chloride CPVC systems. Material Schedule 40 Fittings are produced from PVC Type 1 Cell Classification 12454 B O rings are produced from a Buna N Nitrile material. Listings NSF ANSI Standard 61 Annex G Drinking Water System Components Weighted average lead content of less than or equal to 0 25 . Not to be used in the Hot or Cold water distribution system in a dwelling Maximum Service Temperature 140 F. Do not use 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 Specifications . Size 1 in