Lumax LX-1403-XL Heavy-Duty Quick Release Grease Coupler, XL, 1/8" NPT. Quick & Simple Connection. Proprietary Locking & Quick-Release Mechanism, the Coupler Locks-On and Creates a Leak-Proof Seal. Innovative Design enables Quick Release Coupler to firmly latch onto the Grease Fitting, enabling Hands-Free Greasing. No more Fighting and Struggling with Stuck-On Couplers. If a Fitting becomes Pressurized, just Depress the Thumb Lever and Release the Coupler. No more Broken-Off Fittings. No Spurts or Splashes when Disconnecting. The Waste and the Mess are gone! A Clean Work Environment at all Times! Compact 5” x 2”. Multi-Year Service Life: High-Performance Hydraulic Seal. Lumax is a manufacturer of lubrication and fluid management products. Our products, including grease guns, manual and electric pumps, funnels, drains, grease fittings, filter wrenches, and accessories, are built to the highest standards and incorporate many proprietary features. Lumax' s mission is to provide professionals and consumers with innovative and high-quality products to get the job done right. Product development at Lumax goes beyond the physical product, to a deeper understanding of the end-users' needs. Engineered with the "user-in-mind, " Lumax products are built to the highest standards and incorporate many unique features that make work easier, faster and cost-effective. We have a passion for the design process. We listen to our customers and their ever-expanding requirements. Our unique products lead the field in design, quality, and performance.