Feature:1. Clear anodic oxidation, no scratch, no burr. Strong corrosion resistance and durable in saline environments.2. 316 stainless steel material, accurate casting, corrosion resistance, no rust, strong and durable.3. The waterproof surface is mirror polished, which can separate the surface oil and clean it with one wipe, making the product more durable.4. Thick sidewalls can withstand continuous stress and flexible hose bending. Marine grade casting firm metal.5. The highly polished sides of the head have a mirrorlike appearance that can be matched with modern boats/yachts.Specification:Item Type: Drain VentMaterial: 316 Stainless SteelColor: As Pictures Shown Model: MJS022Product Surface Mirror Polishing TreatmentType: OutletItem A(mm/in) B(mm/in)Size cm/inDiameter cm/inWeight (g/oz) MJS022-3/8in16.34/0.658/2.3 5.8/2.3 1.2/0.5 70/2.5MJS022-1/2in20.7/0.8 63/2.5 7.5/3 2/0.8 120/4.2 MJS022-3/4in26/1 75/3 6.3/2.5 1.3/0.5 200/7.1 MJS022-1in33/1.3 79/3.1 8/3.1 2.5/1 230/8.1.Package List:1 xYacht Drain Vent Note:1. Manual measurement, please allow 12cm error, thank you!2. The picture may not reflect the actual color of the project due to the differences between different displays.