For steam and water working pressure up to 150 lb. Brass to iron ball joint seat. Male end of seat made with radius to insure ideal contact if piles are out of line. Recommended for all ordinary plumbing and steam fitting jobs. Scientifically designed to reduce weight without sacrificing strength. Please note: Image may NOT be accurate representation of actual size of product. | Worldwide Sourcing Galvanized Pipe Joint Union | Size 3/4"