Save time and energy pumping up your raft. Carlson pumps are made to last, using heavy-duty PVC and a foam O-ring seal that does not require grease. Fitted with a 7' non-kink hose. 24" high. Ten year guarantee. Bob Carlson's pumps are bored to a perfect circle with a large honing tool to polish the interior of the pvc tube. This extra measure combined with large output valves insure that no barrel pump takes less effort to use than a Carlson.