Quick Overview This Autometer Low Pressure Fuel Isolator Is Required When Running A Carbureted Engine With A Mechanical Fuel Pressure Gauge Mounted In The Vehicles Interior. This Isolator Assembly Mounts Between The Gauge And The Fuel Pressure Port On Your Regulator Or Carb Feed Line And Translates Fuel Pressure Readings To The Gauge Keeping Flammable Materials Out Of The Passenger Compartment. This Red Anodized Aluminum Version From Autometer Is Safe For Competition Use, Nhra Approved, And Includes Fittings To Connect To -4An Braided Stainless Lines As Well As A Handy Mounting Bracket For Installation. Safe for use with pump and race gas formulations on carbureted applications with a maximum operating pressure of 15 PSI. Not for use with Alcohol, Nitromethane, or Diesel fuels. Includes -4AN male fitting connections. Braided stainless line and gauge sold separately. Aluminum construction, red anodized finish. Includes mounting bracket and hardware. Dimensions (including mounting bracket): 3.5" Wide, 2" High (excluding fittings), 4.25" Deep For fuel injected applications, please see part #5282. Attributes: GTIN: 00046074053764 Brand Name: AutoMeter Add-On: N/A Extended Information: Country of Origin: United States Emissions : Released Life Cycle Status: Announced Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 5.5 x 5.5 x 4.75 inches Weight: 1.06 lb