Made of durable, industry approved PVC (Type 1, Grade 1). Meets the specification for rigid PVC per ASTM-D-1784. These flanges are molded with a smooth interior wall resulting in less pressure loss and higher volume than conventional metal fittings. They meet or exceed the requirements of ASTM-D-2464 (threaded Schedule 80 PVC fittings) and D-2467 (socket Schedule 80 PVC fittings).
Bolt kit includes the appropriate number required for each flange.