The Lumax Heavy Duty Quick Release Coupler, No. LX-1403, has an innovative design that enables it to firmly latch onto the grease fitting, enabling hands-free greasing, according to the company. The heavy duty quick release grease coupler locks on and creates a leak-proof seal. The LX-1403 has a working pressure of 15,000 psi and burst pressure of 22,000 psi. The LX-1403 has four hardened jaws to withstand high pressures without deformation. There are no spurts or splashes when disconnecting.