The fuel pressure gauge adapter is ideal for use in single carburetor, stock-type engines or multi-carburetion where a "Y" fuel block and fittings are not used. Each kit contains one gold anodized aluminum adapter with 3/8" O. D. ends, center tapped 1/8" NPT along with two hose clamps. Mr. Gasket's Oil and Fuel Gauge kit #2810 is suggested.Pit Stop USA offers Mr. Gasket Fuel Pressure Gauge Adapter - 3/8" O.D. Ends - Center Tapped 1/8" NPT 2975 at low everyday prices. Be sure to check out all of our products from Mr. Gasket including Mr. Gasket Fuel Pressure Take Off Adapters and Mr. Gasket Gauge Fittings and Adapters and Mr. Gasket Hose Barb Fuel Pressure Gauge Adapters.