Vernalift mufflers feature all fiberglass construction which are effective in reducing engine exhaust noise. They will also help prevent water from returning to the exhaust manifold when an engine is installed below the water line.
VERNALIFT™ The Vernalift muffler was designed originally for small auxiliary propulsion engines installed near or below the water line in sailboats. In the early 70’s the quieting capabilities of lift mufflers were recognized. The Vernalift family expanded to include new and larger engines.