Designed to work well with Marine Muffler components, these fiberglass tubes provide superb exhaust gas flow and semi-smooth clamping surfaces for easy hose connection.Fire-retardant, filament-wound tubing for long or short exhaust runs. Centek fiberglass exhaust tubes are made from corrosion-resistant, high-temperature resin and E-Glass. Tubes offer plenty of strength for clamping and feature precise outer diameters and a semi-smooth surface for easy hose connection and a tight seal. Tubes sold in 10' lengths incur additional shipping charges. 10' lengths can be cut in half for shipment via U.P.S.Key FeaturesHeat-resistant materials stand up to hot wet exhaustCorrosion-resistant materials ensure long component lifePrecise outer diameters allow easy hose connectionChoice of 1 1/2", 2", 3", 3 1/2", 4", 5", 6", 8" O.D.SpecificationsConstruction:Filament Winding CNC, Resin Transfer MoldingType of Resin:Class 1, Fire Retardant Epoxy Vinyl Ester ThermosetGlass:Corrosion-resistant E-GlassGlass/Resin Ratio:60%Color:Light AmberApprovals:LLoyd's Register Type ApprovalFlame Retardancy:UL9V-0