PROVEN PERFORMANCE, UNMATCHED DURABILITY...
Southwest’s Single-Duro® piston builds on the same successful geometry of the Dual-Duro piston with an improved urethane seal. Made of Single-Durometer Polyurethane, this triplex pump piston is designed to work well in oil based, water based and invert drilling fluids. The Single-Duro® Piston generates less heat internally for cooler operation.