Here's what other sites are saying:
K-Pump K200 Kayak & Raft Pump - Built to last, easy to use, a snap to stow - the K200 from K-Pump is the pump you've been looking for! The stroking action is effortless, yet highly efficient. There is simply no comparable pump that will produce as much air volume with less effort. This is a must pump for all rafts, catarafts and pontoon crafts because you can stand upright when using it. The nozzle includes adapters fit most inflatable boat valves. The ergonomic design is comfortable to use and can be efficiently operated by one person. The rugged ABS construction means great durability, and the K40 even floats. Get your inflatable on the water faster and easier than ever with the K-Pump K200 pump.