Flo-Link XL fittings provide a reliable way to connect Flo-Link XL double O-ring products including SuperBrute XL, VersaFlo, and Magna3 insulated pumps and flow centers. The fittings are simply inserted into the female port and secured by hand-tightening the nut. These fittings are available in a variety of materials and styles to allow connection to any type of hose or pipe.