Is the BOAT ETNA marine exhaust hose system suitable for saltwater use and long-term exposure to UV and weather?

Yes. The BOAT ETNA marine exhaust hose system is suitable for saltwater use and long-term exposure to UV and weather. The corrugated outer layer is made of synthetic rubber CR specifically chosen for excellent resistance to weather, fire and external wear, while the inner CR layer resists exhaust gases and cooling water. Reinforcement with a synthetic cord and steel spiral provides vacuum resistance and mechanical durability in demanding marine environments. Its operating temperature range (−30°C to +100°C), burst pressure ≥2 bar, and certifications (Lloyd’s type certificate 99/00169 (E4) and VTT homologation to Nordic Boat Standard MC9) further confirm suitability for professional marine applications, including saltwater exposure and prolonged outdoor conditions.

Can the BOAT ETNA marine exhaust hose system handle continuous high-temperature discharge and thermal cycling without degrading performance?

Yes. The BOAT ETNA marine exhaust hose system is designed to withstand continuous high-temperature discharge and repeated thermal cycling without degrading performance. Its inner layer of black synthetic rubber CR is resistant to exhaust gases, while the corrugated outer CR layer resists fire, weather and external wear—both materials chosen for thermal and chemical resilience. Reinforcement with a strong synthetic cord and a steel spiral provides structural stability and vacuum resistance under fluctuating pressures and temperatures. The specified operating range of −30°C to +100°C and a burst pressure ≥ 2 bar demonstrate suitability for demanding marine exhaust conditions. Additionally, Lloyd’s type certification (99/00169 (E4)) and VTT homologation to Nordic Boat Standard MC9 confirm that the BOAT ETNA meets rigorous standards for safety and long‑term performance in heat‑exposed exhaust applications.

BOAT ETNA marine exhaust hose system

Air and water hoses, All products/

Additional information

Material	CR – chloroprene rubber
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-30
Vacuum resistance	yes
Standard length [m]	2, 60, 60 / 120
Reinforcement	steel spiral, synthetic cover

This lightweight and highly flexible suction and discharge hose is engineered specifically for water-cooled exhaust systems in diesel-powered motorboats and yachts, ensuring safe and efficient discharge of mixed exhaust gases and cooling water. Designed for use in short sections between installation pipes, it combines durability with superior performance. The inner layer, made of black synthetic rubber CR, is resistant to exhaust gases, while the corrugated outer layer, also crafted from synthetic rubber CR, provides excellent resistance to fire, weather conditions, and external wear. Reinforced with a strong synthetic cord and steel spiral, the hose guarantees vacuum resistance and long-lasting reliability even under demanding marine conditions. With a burst pressure of ≥ 2 bar and an operating temperature range from -30°C to +100°C, it delivers consistent performance across a wide spectrum of environments. Certified with Lloyd’s type certificate 99/00169 (E4) and homologated by VTT according to the Nordic Boat Standard MC9, this hose meets the highest international safety and quality standards, making it a trusted solution for professional marine applications where reliability, safety, and compliance are essential.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
IV-ETNA-032	HOSE BOAT ETNA 32 mm	32	-	In stock	Enquiry
IV-ETNA-038	Hose BOAT ETNA 38 mm	38	-	In stock	Enquiry
IV-ETNA-040	Hose BOAT ETNA 40 mm	40	-	In stock	Enquiry
IV-ETNA-045	Hose BOAT ETNA 45 mm	45	-	In stock	Enquiry
IV-ETNA-051	Hose BOAT ETNA 51 mm	50	-	In stock	Enquiry
IV-ETNA-058	HOSE BOAT ETNA 58 mm	60	-	In stock	Enquiry
IV-ETNA-063	Hose BOAT ETNA 63.5 mm	65	-	In stock	Enquiry
IV-ETNA-076	Hose BOAT ETNA 76 mm	75	-	In stock	Enquiry
IV-ETNA-090	HOSE BOAT ETNA 90 mm	90	-	In stock	Enquiry
IV-ETNA-102	HOSE BOAT ETNA 102 mm	100	-	In stock	Enquiry
IV-ETNA-127	HOSE BOAT ETNA 127 mm	125	-	In stock	Enquiry
IV-ETNA-152	HOSE BOAT ETNA 152 mm	150	-	In stock	Enquiry
IV-ETNA-203	Hose BOAT ETNA 203 mm	200	-	In stock	Enquiry

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This lightweight and highly flexible suction and discharge hose is engineered specifically for water-cooled exhaust systems in diesel-powered motorboats and yachts, ensuring safe and efficient discharge of mixed exhaust gases and cooling water. Designed for use in short sections between installation pipes, it combines durability with superior performance. The inner layer, made of black synthetic rubber CR, is resistant to exhaust gases, while the corrugated outer layer, also crafted from synthetic rubber CR, provides excellent resistance to fire, weather conditions, and external wear. Reinforced with a strong synthetic cord and steel spiral, the hose guarantees vacuum resistance and long-lasting reliability even under demanding marine conditions. With a burst pressure of ≥ 2 bar and an operating temperature range from -30°C to +100°C, it delivers consistent performance across a wide spectrum of environments. Certified with Lloyd’s type certificate 99/00169 (E4) and homologated by VTT according to the Nordic Boat Standard MC9, this hose meets the highest international safety and quality standards, making it a trusted solution for professional marine applications where reliability, safety, and compliance are essential.

Additional information

Material	CR – chloroprene rubber
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-30
Vacuum resistance	yes
Standard length [m]	2, 60, 60 / 120
Reinforcement	steel spiral, synthetic cover