High volume, high pressure, single-action hand pump. Designed with aluminum alloy shaft and rigid handle. Includes built-in pressure guage. Ideal for inflatable SUP's, kite sails, or other inflatables that require very high pressure. Includes multiple adaptors including Advanced Element's proprietary screw-on spring valve adaptor. Volume: 2.5 L/stroke. Pressure: up to 15 PSI.