Celcon plastic boiler drain valve with 1/2" male pipe thread and 3/4" male hose thread outlet. Rated up to 150 psi at minus 20 to 180 degrees F. Excellent chemical resistance. For use with hot or cold water. Pipe threads comply with ANSI B1.20.1, hose threads with ANSI B1.20.7. Not for use with compressed air.