A light, compact and powerful pump for all your inflatable boats. The NRS K-Pump 40 HP is a compact yet powerful manual hand inflation pump. It features a universal nozzle end that fits most inflatable kayak valves. Featuring a two-stage pump mechanism, meaning that with a simple twist, the pump goes from high range to low range for final pressure in the tubes or when your arms get tired. Features The K-40 is the ideal choice for smaller boats - IK's, kickboats, etc. Only 61cm in length, 10cm in diameter, and approx. 1.4kg in weight, it stows compactly The primary stage delivers approx. 4.5L of air per stroke, filling tubes quickly When the pressure in the chamber increases and pumping starts to become difficult, a simple twist of the handle locks out the high-volume primary stage and locks in the high-pressure "top-off" stage Nozzle end and included adapters fit most inflatable boat valves - Leafield, Halkey-Roberts, Summit, Boston, AD-2 and military valves Ergonomic design is comfortable to use, even with extended use Efficiently operated by one person. No hoses to kink and pull out Easily stowed, takes up little space Made in USA All K-Pumps float! Specifications Low Pressure: 2 Litres Maximum PSI: 8 Action: Inflate only Pump Dimensions: 61cm L x 10cm W Volume Per Stroke: 4.5 Litres Claimed Weight: 1.4kg Includes: Valve adapters, Rugged storage bag Made in USA