3.5 inch Stainless Steel Rain Cap

The 3.5 inch stainless steel exhaust rain cap is designed for outdoor industrial exhaust stacks in the 89-90mm bore range, providing long-term corrosion-resistant weather protection for large generators, crushing and screening plant and heavy construction machinery operating in exposed conditions. The stainless steel construction resists the rust and corrosion that would degrade a mild steel cap when subjected to continuous outdoor exposure — essential for plant operating in quarry, agricultural and construction environments where the exhaust stack is permanently exposed to rain and atmospheric moisture. The gravity-operated hinged cap provides fully automatic weather protection with no maintenance requirement. This size is commonly specified for high-output generator sets, large mobile and static crushing plant and heavy agricultural machinery.