A must have for open water paddlers, this pump is a quick and effective way to empty water from your kayak or canoe. It is constructed to not only be effective, but to last. This high volume, double action pump extracts 14 ounces / 0.4 Liters per pump It uses stainless steel screws to reduce corrosion and the anodized alloy shaft reduces wear and maintains smooth action of the pump. Full length high visibility foam with reflective logo aids easy recovery. The 18 inch length is high enough to use for single and double touring kayaks or use with canoe: a hose can be attached to the outlet to reach over the gunwale.