Features: 1.High quality aviation aluminum for good strength and welding properties. 2.It meets aviation hose fitting requirements, precision machine tool to precision tolerance. 3.Suitable for collecting oil tank, filling oil tank, water tank, dry oil tank, etc. 4.Come with a O-shaped sealing ring and a natural aluminium screw on cap. 5.Smooth finished design, durable and long lasting. Specification:Features:1. High quality aviation aluminum for good strength and welding properties.2. It meets aviation hose fitting requirements, precision machine tool to precision tolerance.3. Suitable for collecting oil tank, filling oil tank, water tank, dry oil tank, etc. 4. Come with a O-shaped sealing ring and a natural aluminium screw on cap. 5. Smooth finished design, durable and long lasting. Specification:Condition:100% Brand NewMaterial: Aluminium alloyColor: As Pictures ShownSize: Cap Diameter: approx.54mm/2.1inCap Height: approx.15mm/0.6inOverall Height: approx.56mm/2.2inHole Diameter: approx.38mm/1.5in(1 1/2'')Neck External Diameter: approx.44.5mm/1.8in, (Step Length: 5mm/0.2in, Diameter: 40.4mm/1.6in)Neck thread: M48 x 2.5Cap thread: M48 x 2.5Package Weight: Approx.95g Package list: 1 * Filler Neck with CapPackageList: