Horobin’s High Pressure Testing Plug – 20bar+ are ideal solution for pressure testing and temporary sealing of water, gas, oil and sewerage pipes of any material. The pressure plates are made of steel and the plugs are fitted with a Ball Bearing Race for ease of tightening. Rubber Seals are made of commercial grade rubber mouldings. Pressure Gauge can be fitted as an option and chemical resistant rubber seals can also be supplied.