Alemite 317850-1 is a hose assembly that consists a reinforced oil-resistant synthetic rubber tube (3/16 in. Id x 0.48 in. Od) and two permanently attached 1/8 in. Nptf male couplings. The hose assembly is 12 in. Long and has 12, 000 psi Burst Pressure and 4, 800 psi operating pressure. The couplings are made of zinc-plated steel for improved resistance to corrosion. This model Hose can only be used with Hand-operated equipment, including manual grease guns (should not be used with power-operated equipment). Alemite offers a large selection of high quality grease gun accessories to ensure durable and reliable performance. Alemite grease guns are built to perform in demanding applications. Unique, innovative designs ensure excellent performance and strong attention to quality production provides maximum durability. With the most outstanding range of products offered, Alemite grease guns and accessories will maximize your lubrication productivity.