2 inch Stainless Steel Rain Cap

The 2 inch stainless steel exhaust rain cap provides the same reliable automatic weather protection as the mild steel version but in corrosion-resistant stainless steel construction — the preferred specification for any outdoor or exposed exhaust stack installation. Fitting a 2 inch (51mm) vertical exhaust stack outlet, this gravity-operated cap closes under its own weight when the engine stops to prevent rainwater, insects and debris from entering the exhaust system, and opens automatically under exhaust gas pressure when the engine runs. The stainless steel construction significantly extends the service life of the rain cap in outdoor conditions — resisting the rust and corrosion that would degrade a mild steel cap when exposed to rain, condensation and atmospheric moisture over time. This makes the stainless version the preferred choice for outdoor generator sets, agricultural machinery, construction plant and any exhaust stack installation exposed to the elements.