Sealey-Grease-Gun-Heavy-Duty-Twin-Piston-3-Way-Fill-Sealey-AK4402-p-Highly-durable-cast-iron-pump-head-features-dual-piston-design-for-high-volume-performance-Three-way-fill-with-cartridge-bulk-or-manual-capability-Supplied-with-rigid-delivery-tube-&-push-on-hydraulic-4-jaw-coupling-Rubber-gripped-grease-tube-&-handle-for-easy-grip-Features-variable-stroke-for-controlled-grease-volume-Half-stroke-gives-low-pressure-&-low-volume-full-stroke-provides-high-pressure-&-high-volume