Features 1、Applicable Model: This thru hull exhaust skin is suitable for Webasto, for Planar, for Eberspacher, Chinese Diesel Parking heaters var4. 2、22mm OD: The outer diameter of this thru hull exhaust fitting is 22mm / 0.87in, which is suitable for the hose with an inner diameter of 22mm. 3、High Strength Stainless Steel: Thru hull skin is made of marine grade 316 stainless steel, rustproof, chemical resistant, can deal with harsh environment. 4、Mirror Polishing: The surface of the thru hull exhaust tube socket is polished and rustproof, which is durable in the saline environment. 5、Easy Installation: Equipped with screws and washers, thru hull skin is simple to use, without complex operation, and will not take you long time. Specifications: Item Type: Thru Hull Exhaust Skin Material: 316 stainless steel, mirror polished Quantity: 2 pieces per set (with washer and fastener) Application: Suitable for all heater systems with 22 mm internal diameter exhaust. The outer diameter is 22mm, which is suitable for the hose with an inner diameter of 22mm. Fitment: Fit for Webasto, for Planar, for Eberspacher, Chinese Diesel Parking heaters var4 Package List 2 x Thru Hull Exhaust Skin 2 x Gasket 4 x Rubber Washer 6 x Nut 6 x Bolt