Fit for Hose Max Outer Diameter: 17mm/0., 67 Package Included: 4 x Car Hose Finisher Clamp Adapter Hole Outer Diameter: 23mm/0., 91 Universal Piece of 2 Aluminum Alloy Flare Coupler Fitting Adapter 6AN Male Material: Aluminum Alloy · Color: Black · Size: AN8 · Dimension: 31x26mm/1.22"x1.02" (L*H) · Fit for Hose Max Outer Diameter Anodized finish for strength and firmness. Having the ability to easily connect flexible lines. Hex hose finisher can be reused and recycle if you do not want them to stay in the original place. Feature: The AN thread is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid. Hole Inner Diameter: 13mm/0., 51 Suitable for fuel hose, oil hose, diesel hose, water hose and so on, perfect to apply in automotive. Hex hose finisher can be reused and recycle if you do not want them to stay in the original place Suitable for fuel hose, oil hose, diesel hose, water hose and so on, perfect to apply in automotive. Fuel Oil Water Line Connector AN4 AN6 AN8 AN12 Aluminium Hose End Finisher Fuel Oil Clip Water Pipe Aluminum Alloy Hose Clamp Adapter