Style 91 Service Saddles provide a quick, easy way to make gas service connections on steel or cast iron pipe. They are specifically engineered for accurate fit and long-term sealing performance. Ruggedly constructed for long service life, the stirrups are made of a high strength Dresserloy material, and accurately shaped to conform to the outside of the pipe. Extra wide bearing surfaces prevent any cutting or crushing of the pipe. The gasket is made of a time-proven Dresser compound, securely cemented into place for easy installation.