The Black Diamond™ 18″ Grease Gun Hose is designed for use with hand-operated grease guns, giving you flexible reach to grease fittings in tight or hard-to-access areas. Its thermoplastic construction stays flexible while handling a 3,500 psi working pressure and a 11,600 psi burst pressure. Zinc plated steel end connections with hydraulic crimping add durability and corrosion resistance for reliable service. Threaded 1/8″ NPT for a secure fit with compatible grease guns.