The model K100 is a compact, easy to use, high volume pump you could ever own. It weighs slightly over 2 lbs. and measures 3” by 22”. It maximizes your storage space and stowability without sacrificing performance. It easily outperforms foot pumps and the standard “two way” barrel pumps in both volume and ease of operation. The K100  has fast become a favorite with a wide range of users: inflatable kayakers, float tubers, pontoon boaters and yacht tenders. With the included adapters you can use the pump on most air mattresses as well. If you are searching for a pump that is very compact, easy to stow, high volume, easy to operate, rebuildable and durable, this pump is the best value for your money.