EC135 Tri-Bag Float System with Liferafts w / RH Hoist GuardEach kit includes 4 floats manufactured with lightweight urethane coated nylon fabric. Each float has inlet check valves and combination manual topping pressure relief valves. One 1105 cu. in. inflation bottle and inflation valve is installed on the underside of the fuselage for float inflation. The float inflation valve is operated either manually by a pull handle mounted on the cyclic stick or electrically by 2 water switches mounted on the