This 6AN male adapter is used to integrate a high flow check valve on the outlet of many fuel pumps. The valve out flows the integrated check valve that comes standard on many fuel pump outlets. Furthermore, decreasing this restriction allows the pump to operate at less current. This keeps fuel temperatures lower and prevents cavitation. The two billet aluminum adapter halves are secured together with a stainless steel retainer and bolts that clamp tightly around the pump outlet. A stainless steel plunger and spring are used for making a one-way connection. Viton O-rings seal for a leak free connection and E85 compatibility.