This item is brand new in the box and unopened. A durable solution for pressure tests up to 60bar Use water, oil, or glycol for tests Weather- and cold-resistant container with a DURAMANT coating Dual-valve system (twin valve) facilitates fine pressure adjustments and self-testing Drag indicator clearly displays the pressure allowing you to see pressure drops Test hose with steel mesh prevents measurements errors caused by hose expansion Pair with a finely scaled pressure gauge (sold separately) for greater accuracy