The Dual Action Hand Pump is a superb high-pressure manual air pump, which we have designed especially for the swift inflation of your caravan awning, drive away awning, family tent, or alternative inflatables air frame, inflating whilst you are pushing downwards and pulling upwards; inflation has never been simpler! This hand pump utilizes an automatic switch from double, to single action, when the pressure exceeds 400 mBAR (or 5.8 PSI). The maximum capacity of this pump is 4,000CC and the maximum pressure is 800mBAR (or 11.6 PSI). Features: Dual action up and down stroke inflation 4000cc capacity Max Pressure 800 mBAR (11.6PSI) Fitted with bayonet valve connector Complete with pressure gauge and valve adaptors Specifications: Weight: 0.5kg Size: 39 x 21 x 10cm