The Prevost Prevo G Safety Coupler is an automatic sleeve coupler, featuring an innovative clamping system which allows minimum effort coupling and a tight seal. The "G" disconnects with two simple gestures. First, release the pressure and stop the air flow by pulling the sleeve as indicated by Arrow No. 1 on the unit. Second, disconnect the plug by pushing the sleeve as indicated by Arrow No. 2. The "G" coupler body is manufactured with shock-absorbing fiber reinforced materials and is anti-static. It is highly resistant to abrasion, shock, crushing and vibration. This robust coupler is lightweight, weighing less than 2.22 oz, allowing the user to perform precise work with minimum effort.