Highly durable die-cast aluminium alloy pump head. Features 3-way fill with cartridge, bulk or manual capability. Fitted with 2-way operating extendable handle; pistol type, ideal for use in confined spaces and lever type, providing high pressure and volume. Supplied with rigid delivery tube, push-on hydraulic 4-jaw coupling and 300mm flexible delivery tube. Rubber gripped grease tube and 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 delivery. Accepts standard 400g cartridges.