Monument Air Bag is a durable, quality, flexible drain plug for plugging drains and pipes. This plug is fitted with peripheral ribs that will give a better seal and grip on the tube or pipe being repaired or replaced. It has a long feed hose that is fitted with a Schrader valve to quickly release the pressure. For use with Monument drain testing equipment. Inflate with MON1308 pump. Suitable for blocking off drain pipes with a diameter range of 142-200mm. Size: 150mm. Maximum inflation pressure: 7.5psi (0.52bar).