PROLUBE 44922 Quick Connect Grease Fitting Adaptor. 90-degree angle, 4.9-millimeter diameter greasing end, with a max working pressure of 1,000 PSI. Connect or disconnect with a snap. A simple and effective system that renders versatility to grease guns. Greasing difficult-to-reach areas becomes very convenient with this quick-connect grease adaptor. No threads, no screwing or unscrewing. Just snap on and use. Ideal for sealed bearings, u-joints, high-pressure insert fittings, and recessed fittings up to 17mm. The system is suitable for use with hand-operated grease guns only. Having set standards of excellence for ourselves, the constant quest is on bettering them. Stringent systems and processes are constantly monitored to ensure conformance and consistency at all stages of production. All our processes comply with the ISO 9001 Quality System Standard.