Mophorn Grease Gun Coupler - Your Trusty Partner Simplify Your Greasing Tasks Imagine having a reliable companion for your grease gun. Our grease gun coupler is precisely that! Crafted with a combination of #45 steel and spring steel, it's designed to fit all 1/8" NPT grease guns and can withstand up to 10,000 PSI without flinching. It makes fueling effortless, even in the most confined spaces. No matter if you're working in the field, in a workshop, or a warehouse, this coupler has got your back. Total Compatibility Robust & Safe One-Hand Control, Tailored for You Compact & Light Key Features Sturdy and Secure: Our grease gun coupler is crafted with spring steel and #45 steel. It can withstand pressures up to 10,000 PSI without leaks. The 3-jaw lock and spring structure are thickened to ensure it remains firmly attached under high pressure. Compact & Lightweight: This locking grease gun coupler has a compact design. It measures a diameter of 0.62""/16 mm and a length of 3.54""/90 mm.