Foot Pump Double Chamber Inflator 90004 | 4BoatsDouble chamber foot pump 90004 provides hands free, low effort inflation for fabric and rubberised boats. Double chamber increased air delivery per stroke Foot operated design frees hands during onboard inflation Low effort operation reduces user fatigue Compatible with fabric and rubberised boats attains recommended pressure Compact base simple stowage in lockers Model 90004 robust, marine grade construction Double chamber foot pump (model 90004)