This exhaust hull fitting contains all that is required for a professional exhaust installation for your marine heater installation suitable for marine applications eberspacher and webasto heaters mounting bolts supplied eberspacher d1lc, and d1lc compacteberspacher d2 airtroniceberspacher d4 airtroniceberspacher d3lc and d3lc compact, d5lceberspacher d1l requires exhaust upgrade kit See other items webasto air top 2000 requires exhaust adaptor part number 92641a webasto air top 3500 5000 all other webasto and eberspacher heaters with 24mm id exhaust Brand: Webasto