The LockNLube® Grease Coupler, included with a spare rebuild kit, comes in a convenient box of 20. This coupler is designed for easy attachment to grease fittings, providing a leak-free connection that enhances lubrication efficiency. Constructed from robust materials, it is built to endure high pressure and frequent use. The included rebuild kit ensures longevity, allowing for quick maintenance and continued performance. Ideal for both professional mechanics and DIY enthusiasts, this coupler is compatible with various grease guns and fittings.