A worn or poorly fitting coupler is one of the most common reasons grease guns start to frustrate. The coupler either won’t seat properly on the nipple, or it leaks grease back past the seal every few pumps. Replacing the coupler with a quality unit like this Groz HC143B solves the problem without replacing the whole gun.
The 3-jaw design gives a more secure grip on standard grease nipples than a 2-jaw coupler, particularly on nipples that are slightly worn or in an awkward position where you’re applying the gun at an angle. Built from high-quality steel for durability in high-pressure applications. Attaches and releases cleanly, which matters when you’re moving between many grease points in a session.
Compatible with most standard grease guns including the Groz trigger and pistol guns in the Vensimart range.
Key Features:
- 3-jaw design for secure grip on standard grease nipples
- High-quality steel construction
- Rated for high-pressure grease gun use
- Easy attachment and detachment
- Compatible with standard grease guns










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