Since the bellows pump achieves a maximum air pressure of 2 psi, you can get your inflatable boats and towables nice and firm. It also collapses to fit under kayak decks or boat seats. Convenient, durable, and reliable, this is the best towable tube pump that doesn't use electricity Use it to either inflate or deflate towables, inflatable boats, and other toys when you don't have an outlet nearby. This durable boat tube inflator has a 54" long hose and three adapters to fit most valves. The air displacement per stroke is 0.5 liters Sometimes, you need a simple, effective foot pump that can get the job done. Our Bellows Action Foot Pump is the perfect option for blowing up towables on the go Collapsible for easy storage. AIR PUMP BELLOWS FOOT PMP