NICE REPLACEMENT COUPLER: Upgrade your aging or broken grease gun coupler with compatible replacement option. Designed to fit most grease guns in the market with 1/8" NPT fitting, it offers a perfect solution for effortless lubrication. With a free 12'' hose included for your convenience, it not only provides upgraded features like high pressure, leak-proof design, and one-hand operation, but ensures the lowest lifetime cost. Elevate your lubrication experience! Try it and see the difference!EASY TO USE: Experience the convenience of one-handed operation with our grease gun coupler. Its smooth and strong 6-jaw bite lock allows easy attachment, without the need to hold it in place while lubricating. Simply lock the coupler onto the grease gun fitting, free your hands, and operate the grease gun effortlessly. The quick connect and release mechanism, along with the smooth retraction function, makes greasing a breeze. Invest in simplicity and efficiency with our coupler!UNIVERSAL COMPATIBILITY: This upgraded STHIRA® Grease Gun Coupler fits all 1/8" NPT standard grease guns, including pneumatic, manual, and electric ones. It is also compatible with all DIN and SAE grease nipples and SAE and metric Zerk joints. With easy installation, this grease gun tool is perfect for automotive repair, large machinery, farm tractors, and more. Upgrade your grease gun and experience efficient lubrication like never before!UPGRADE PERFORMANCE: Our grease gun coupler is built to handle extreme pressures up to 10/12000 PSI, thanks to its 6-jaw design and exceptional durability. With reinforced jaws and a quality sealing gasket, it offers a leak-proof experience, even under high-pressure situations. Tested for leak prevention at extreme pressures of 10/12,000 PSI or higher, this coupler ensures a tight and reliable connection. Don't compromise on performance when it comes to lubrication!PREMIUM DURABILITY AND STURDY DESIGN: Crafted from premium alloy steel, with a rubberized handle bar, our grease gun coupler ensures durability, rust resistance, and corrosion resistance. Its optimized thickness and upgraded 6-jaw bite lock provide superior strength and a longer service life. Choose this coupler for wear-resistant performance, making it the ideal choice for every lubrication need. Say goodbye to frequent replacements and choose the best companion for your grease gun!