Monument Air Testing U-Gauge Kit containing all the items (except testing plugs) needed to carry out an air test to 100mm (4in) water gauge pressure on any size of drain or pipe. The kit is housed in a display box with full instructions. Contains 1 x U-Gauge 1 x Hand Bellows Pump 1 x 1/2in BSP Nipple Cap 1 x 1in BSP Nipple Cap 1 x Y-Piece 3 x 600mm lengths of Rubber Hose