Jabsco Amazon pumps are designed specifically for use as bilge pumps and toilet waste disposal pumps.. . Do not use Amazon pumps to transfer diesel, petroleum products, acids, chemicals or caustic liquids. They are designed specifically for smaller boats but still giving a powerful output of 10 US gpm. Actual performance varies according to the individual installation and the pumping rate of the user. Suitable for mounting on bulkhead or deck it has multi-positioned ports and body which give an amazing 96 assembly variations.