The tall, or full-size Salamander 4" barrel pump for rafts and inflatable kayaks offers a great value at about 2/3 the price of the Carlson brand. The base is a bit larger on this one, which makes it slightly harder to strap onto a raft thwart, but also more steady when standing - though we always recommend laying these down when you aren't using them to prevent handle breakage.
One detail to be aware of is that the hose tip is a simple, untapered piece of vinyl tubing. You can push most twist-in valve adapters into this tip but it does not fit into Leafields without some sanding, or preferably with the appropriate size hard plastic fitting pushed into the tip's end. Call us if you have questions.