Brand: Aeromotive Manufacturer's Part Number: 13137 Part Type: Fuel Pressure Regulators Product Line: Aeromotive Extreme Flow EFI Fuel Pressure Regulators Automotive Fittings Part Number: AEI-13137 UPC: 00684980008609 Regulator Pressure (psi): 30-120 Regulator Style: Return Regulator Location: Inline Boost/Vacuum Reference Port: Yes Boost/Vacuum Rise Ratio: 1:1 Gauge Port: Yes Inlet Quantity: 1 Regulator Inlet Size: -12 AN Inlet Attachment: Female straight cut O-ring Outlet Quantity: 2 Regulator Outlet Size: -12 AN O-ring Outlet Attachment: Female straight cut O-ring Fittings Included: No Regulator Material: Aluminum Regulator Color: Black Rebuildable: Yes Mounting Bracket Included: Yes Remanufactured: No Quantity: Sold individually. Notes: For Belt/Hex Drive Fuel Pumps and EFI Engines. Features 0.500 in. high flow valve seat to support 7-26 GPM fuel pumps. Description: Control your fuel pressure with one of these Aeromotive Extreme Flow EFI fuel pressure regulators. They're manufactured from durable aluminum, then anodized for maximum protection. The regulators include a standard spring (installed) that supports 30-75 psi base fuel pressure and a high pressure spring (included) to support 75-120 psi base fuel pressure. Aeromotive Extreme Flow EFI fuel pressure units also support vacuum and boost reference on a 1:1 ratio.