Professional installation is highly recommended. Installation instruction is NOT included. 410mm ;700mm Material: 304 Stainless Steel + CPE Synthetic Rubber 3) Comes with 1-3/4" | 45mm gauge, 1/8" NPT gauge port, adjustable from 0 to 160psi to the maximum capacity of the fuel pump. 4) Comes with fuel pressure regulator, -6AN inlet and return port. 5) Suppotr high power application: 300-800HP 6) Available colors: 2 colors (as shown in the picture) Application: Universal Package includes: 1 x Fuel Pressure Regulator 1 x Oil Filled Gauge 3 x Fuel Lines; Length: 1 x 130 mm, 1 x 410 mm, 1 x 700 mm All necessary equipment As shown in the picture