Maxipress F Piston Clamp, 20 in Opening, 5 in Throat Depth, 9,000 N no checkout Octagonal heavy duty crushproof couplings Continuous flow Octagonal heavy duty crushproof couplings Continuous flow tube keeps water flowing even if kinked Metal spring collar prevents kinking at faucet Anti bacterial lining prevents deterioration and extends hose life or relocate Rolled spring steel bar provides maximum pressure held throughout the whole job Fixed jaw surface is grooved to achieve maximum grip Spring activated back brake keeps moving jaw firmly in position Covered double threaded screw doubles both pressure and speed with a greasing hole for optimum lubrication Dismountable interchangeable easy grip handle