The Down River Equipment Standard 4 in Barrel Pumps are manufactured in their shop, assuring you a quality product with a 10 year limited warranty. They come with a 1" diameter x 6' long “Tigerflex” non-collapsible hose with an aluminum nozzle designed to fit most standard inflation valves. The Standard size (26.5 in tall) delivers a solid blast of air, topping off your raft with less strokes.