Foot pump with two air chambers that easily alternates between single and double chamber by removing a replacement plug. The closed position is for bringing tubes to an optimal pressure. The open position provides higher pressure and therefore is perfectly suitable for inflating airdecks.• Capacity 6.5l• Max pressure 800mBar/11,6PSI• Two airchambers 1,5l and 6,5l• Includes universal adaptor set• Suitable for any type of inflatable boat• Dimensions 32cm x 23cm x 7cm• Functions inflate and deflate