Heavy Duty Coupler (JCBL-4008) Category: Lubrication Tools Description Description Features Designed to Meet the Pressure Requirement of Grease Gun Four Jaw Coupler. Three Jaw Coupler. 45′ & 90′ Coupler. Straight Coupler. Finish: Chrome Plated, Zinc Plated. Related products Deluxe Lever Action Grease Gun (JCBL-4001) Read more Rotary Barrel Pump (JCBL-4015) Read more High Pressure Oil Can – Pistol Type (JCBL-4009) Read more Bucket Grease Pump – With Trolley (JCBL-4014) Read more