Molded Schedule 40 products are manufactured to ASTM D 2466 for use with pipe manufactured to ASTM D 1785. Certain products carry reduced pressure handling capability and have maximum internal pressure ratings at 73 degrees Fahrenheit noted. Fabricated Schedule 40 pressure fittings (part numbers ending with "F") are manufactured to Spears specifications for use with pipe manufactured to ASTM D 1785. See publication FAB-7, General Specifications for Standard Fabricated Fittings for additional information. All specified Schedule 40 products are manufactured from materials certified by NSF for use in potable water service. Backed by over 40 years of both product and process development experience, Spears have become one of the leading manufacturers of thermoplastic valves, fittings, and piping system components. Spears broad product line offers a complete selection of 1/8-inch through 12-inch injection molded fittings and fabricated fittings through 48-inch, many specialty products, and a full complement of manual and mechanically actuated thermoplastic valves in a variety of types, sizes, and configurations.