Features a "Polyurethane Seal"  Description:     This durable Hydraulic Coupler is designed for the toughest of injection conditions. This coupler has 4 jaws, that form a superior connection between coupler and fitting. These couplers can be injected with a maximum pressures of 10,000psi. The coupler has a polyurethane seal that will outlast the standard product. This coupler is made of carbon steel, zinc plated with hardened jaws and a connecting thread of 1/8 NPT female. We call it Heavy Duty because it’s just that.
Precision Made in Germany

Packaging:     (1) Single bag of 10 hydraulic couplers.