Take the struggle out of trying to grease flush or hydraulic type fittings on vehicles and farm equipment with the STEELMAN 06132 Grease Gun Needle Nozzle Adapter. Attaching to any standard grease gun hose or extension, this coupler lets you access flush or hard to reach hydraulic type fittings inaccessible by regular couplers. The adapter's 4.75-inch length allows it to double as an extension to reach past obstructions and to deep set zerks. A locking sleeve on the base of the adapter helps secure it to existing push-on grease gun couplers. Backed by a lifetime limited warranty.