After installation or repairing of any drain or pipeline system it should be tested for leaks using this gauge. Made from unbreakable parts it will test up to 100mm water gauge pressure (10mbar) irrespective of pipe diameter.The hinged lid of the gauge folds back so that it forms a base behind the gauge for added stability. Capacity WG 100mm. Display pack. Read product review from Amazon Customer Reviews. Buy MON175 from Amazon Marketplace. H90872 ETIK6164 ETIK6164 T000101 806517 806517