Sherco Automotive & Marine Supplies Part # AG806 Mechanical Oil Pressure Gauge 72" Inch Nylon Line Tubing Install Kit w/ Fittings For Automotive Car Truck Tractor Equipment. Comes with necessary fittings. For mechanical pressure gauges (except fuel, nitrous, or brake pressure gauges). When Quality Matters the AG806 Copper Kit is unmatched. Replaces Auto Meter # 3224 & Stewartwarner #82553-F. Tubing kit contains: Line Length : 72" Inch (6' Feet) Line Diameter: 1/8" Inch Fittings: (2) 5/16" - 24 UNF Nut Fittings With (2) Compression Sleeves (Pre-Installed On Line) (1) 1/8" - 27 NPTF Female to 5/16" - 24 UNF Male Adapter Nut Fitting (1) 1/8" NPT to 1/4" NPT Bushing