Check the listing for details. Grease Gun Coupler Single Handle Strong Locking Quick Release Grease Coupler. Condition: New, Made in China. Listed at 9.76 USD. 1.The oil gun coupler is made of upgraded stainless steel. It is made of high-quality steel, which is wear-resistant and durable, has high quality, and has good spring elasticity, ensuring smooth sliding and stable performance during use.Silicone pads can better prevent leakage 2.Upgrade-strong lock 6 jaw grease gun coupler design with quality sealing gasket, strong enough to lock zerk and prevent leakage, and easy to lock and release. 3.Single handle with anti-slips design and smooth retraction mechanism allows one-hand operation, which is ergonomic and less labor-intensive. Once locks onto zerk fitting, it stays on and frees both hands to operate the grease guns. 4.Wide Application：Compatible with All 1/8 NPT standard, mini, battery, pneumatic,manual gre.