The Python XL-DA25 is a product line extension to the current Python XL-DA product family so it uses the same double-acting technology and can achieve nearly double the flow rate of a similar single-acting pump. The Python XL-DA25 comes with a 63.5 mm (2.5 inch) pump stroke and can achieve flow rates of up to 6,057 lpd (1,600 gpd). This makes it suitable for off-shore rig applications requiring large amounts of chemical to be dispensed sub-sea. These pumps operate on low gas or compressed air pressures and utilise the same Merkur® air motor used on other Graco products. The wetted parts are all 316 stainless steel and the air motor comes with a Graco proprietary coating suitable for off-shore applications.