Welter is the largest capacity cressi hydrosports pump. With a volume of 2000 cc, it can inflate a 300 l board in under 10 minutes. The mechanical selector can be used to set the pump to double or single action, to reduce fatigue when inflating at high pressures. Equipped with a deflation function, pressure gauge and multiple bayonet connections, it's compatible with all cressi hydrosports sups and kayaks. Its foldable pedestal and unscrewable handles make welter compact and easy to store in a backpack