Designed For Single Or Twin Carburettor Installations Has An Adjustable Range Of 1 To 5 Psi Via A Numbered Dial On Top Chrome Finish For The Classic Look Ideal For Facet Fuel Pumps To Control The Fuel Pressure To The Carburettor A Maximum Input Pressure Of 7 Psi Should Not Be Exceeded Dimensions& Material: Color: silver Fuel Hose Clip 1/2 - 5/8DIA',1'Fuel Hose Clip 1/2 - 5/8DIA',1' Includes Two Steel Clips And 8mm Fittings For 8mm Bore Push-on Fuel Hose Made of Precision Machined 6061T6 Billet Aluminum Package Included: 1 x Carburettor Carb Fuel Pump. Fitting . (100% Brand New Never Used Or Installed) Note: No installation guides are included, we highly recommend to seek professional installation. Any damage during installation will not be refunded. Will come with everything you see in the picture. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check that the picture matches before purchase. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.