Full-port, 4" polypropylene ball valve is precision molded glass-reinforced polypropylene for stability, strength and toughness. It features 8-bolt assembly for greater strength, a self-aligning ball for full flow and an easy-to-operate open/close handle. It is pressure rated at 100 PSI at 70°F. Bee Valve Inc. 1150 Taylor St. Elyria, OH, 44035