The VGS Model V-7705 flexible coupling is designed for use in a variety of piping applications of moderate or high pressure services. Working pressure is usually dictated by the wall thickness and rating of the pipe being used. The Model V-7705 coupling features flexibility that can deal with misalignment, distortion, thermal stress, vibration, noise, and also resist seismic tremors. Sizes available: 1” ~ 12” / 25.4 mm ~ 304.8 mm Flush seal gaskets available as V-7705F (1 1/4” - 8”) Galvanized couplings available as V-7705G and V-7705FG (Gap seal) Working Pressure: Up to 300 psi / 20.7 bar