Ideal for use where battery power is not available or as a backup to the electric pumps, the Diaphragm Bilge Hand Pump is easy-to-use and has a capacity of 0,4lt/0,1gallon per stroke. It features a built-in non-return valve, which can be easily removed with the quick release clip and two-position handle for convenient use, depending on your requirements. Additionally, its outlet connection allows the use of either a Ø 3/4” or a 1” hose.