All PVC SCH 40/STD white fittings shall be produced by Spears® Manufacturing Company from PVC Type I cell classification 12454, conforming to ASTM D1784. All injection molded PVC SCH 40/STD white fittings shall be certified for potable water service by NSF® International and manufactured in strict compliance to ASTM D 2466. All fabricated fittings shall be produced in accordance with Spears® General Specifications for Fabricated Fittings. Spears® Reducing Tee, Fitting/Connector Type: Tee, 4 x 4 x 1-1/2 in Nominal, Socket, 6-13/32 in Length, SCH 40/STD, Molded, PVC, White, 140 deg F, Domestic