Espar / Eberspacher Hull Skin Fitting for Exhaust Hose (30mm diameter)

Genuine Eberspacher (Espar) 30mm (approximately 1.25 inch / 1-1/4") hull skin fitting designed for marine heater exhaust systems, providing a safe and sealed exhaust outlet through the hull. This exhaust thru-hull fitting (through hull exhaust fitting) is ideal for boats, yachts, and marine heating installations using diesel air and water heaters, including boat heater exhaust and diesel heater exhaust outlet setups.

Hull Skin Fitting – 30mm (1.25" / 1-1/4") Marine & Boat Exhaust Outlet

This genuine Eberspacher hull skin fitting is suitable for 30mm exhaust systems and ensures safe exhaust gas discharge in marine environments. It can also be used with 24mm (approximately 1 inch) exhaust systems when paired with a 24mm to 30mm reducer or adapter. If required, we also offer 24-30mm exhaust adapter.

If you require a 24mm (approximately 1 inch) exhaust hose hull fitting, you can find the correct option here: 24mm hull skin fitting.

Compatible with Espar Airtronic and Hydronic heaters, this marine exhaust fitting is also widely used with Webasto and similar heating systems, making it a versatile solution for marine heater and boat exhaust installations.

Diameter: 30mm (approx. 1.25 inch / 1-1/4")

What You Need for Installation

If your heater has a 24mm exhaust outlet (approximately 1 inch – common on heaters up to 19,000 BTU, including models such as Eberspacher / Espar D2, D2L, D4, D4L, D4R, D5):

• 24mm to 30mm exhaust adapter
• Water drain coil for 24mm adapter
• This 30mm through hull exhaust fitting (this product)

If your heater has a 30mm exhaust outlet (approximately 1.25 inch / 1-1/4"):

• 30mm to 30mm adapter (for water drain connection)
• Water drain coil
• This 30mm through hull exhaust fitting (this product)

Using the correct combination of exhaust components ensures safe exhaust discharge through the hull, proper fitment, and long-term reliability of your diesel heater exhaust system.

Key Features

• Genuine Eberspacher (Espar) hull skin fitting
• Heatso is an authorized Eberspacher NA dealer – guaranteed genuine OEM part shipped from California
• Designed for 30mm (1.25" / 1-1/4") exhaust systems
• Compatible with 24mm (1") systems using reducer
• Marine-grade construction for durability and corrosion resistance
• Provides safe exhaust outlet through boat hull
• Ideal for boat exhaust outlet and diesel heater exhaust outlet applications
• Suitable for diesel air and water heaters

Common Applications

• Marine heater installations (boats, yachts, vessels)
• Boat diesel heater exhaust systems
• Diesel air heaters (Airtronic systems)
• Diesel water heaters (Hydronic systems)
• Webasto and similar marine heating setups
• Exhaust outlet replacement or new installations

Compatibility

Suitable for various heaters including Espar / Eberspacher, Webasto, and other heating systems using 30mm exhaust outlets.

Part Number

• 221050894300 / 22.1050.89.4300 / 22.1050.89.43.00 / 22 1050 89 4300 / 22 1050 89 43 00