For steam and water working pressure up to 150 pounds. Brass to iron ball joint seat. Male end of seat made with radius to insure perfect contact if piles are out of line. Recommended for all ordinary plumbing and steam fitting jobs. Scientifically designed to reduce weight without sacrificing strength.

WARNING: This product is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.