With the use of the GARDENA Hose Repairer, hoses can be quickly and easily repaired without tools. The damaged hose part is simply cut out and the GARDENA Hose Repairer is inserted on the spot. POWER GRIP: Specially shaped sleeve nut for a very tight fit and trouble-free assembly. It is suitable for 19 mm (3/4") hoses. For fast repair of hoses.