Constructed of vinyl with polyester fabric, reinforced at all strain points to provide water proof construction. Bag conforms to shape of the back and may be stored wet. Shoulder straps and carrying handle designed to military specifications, will not rope, mildew or twist while in service. Unit is standard with quick connect brass fittings and oil proof 44” long hose. Stainless steel valve and precision cored brass twin nozzle pump is rust proof and is engineered to give positive shutoff at any stroke position. Proven to be easy and comfortable to operate. No efficiency loss due to non-use or long periods of storage. Replacement parts available upon request.