This is the pump for you if you have an “IK” or a “kickboat”. The goal in the development of the K-40 was to make a more compact version of the K-400 so that it could be stowed when space is limited. Only 24” in length and weighing only 3 ½ lbs the K-40 still produces 70% of the volume per stroke of his bigger brother the K-400. The K-40 is also fitted with a unique handle/sling strap which makes it easy to pump and easier to transport. Like all K-Pump models, it comes with a stowage bag, assorted adaptors and a sample tube of K-Pump Lube. synthetic lubricant. The K-40 like the K-400 will work on most all valves including the older “military valves”.