Stainless Rain Cap For 7″ Diameter Straight Stack
Product Overview
Shield your vertical exhaust from the elements with this Stainless Rain Cap, designed specifically for 7″ diameter straight stacks. Made from highly polished 430 stainless steel, this cap resists rust, maintains a brilliant shine, and operates automatically with a counter-balanced flap. It opens smoothly with exhaust pressure and closes tightly when idle—keeping rain, snow, and debris from entering your exhaust system and causing internal damage.
Key Features & Benefits
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430 Stainless Steel Construction: Delivers excellent corrosion resistance and a mirror-like polished finish for added style.
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Counter-Balanced Flap: Opens with engine backpressure, closes when off—protects your stack without manual adjustment.
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Designed for 7″ Diameter Stacks: Precision fit for secure mounting to 7″ straight vertical exhaust stacks.
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Weather Protection: Keeps rain, snow, and debris out of your exhaust, preventing rust and moisture-related issues.
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High-Polish Finish: Complements chrome or stainless steel stacks with a clean, professional appearance.
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Warranty Backed: Includes a 1-year warranty for added reliability and confidence.
Expanded Benefit Section
This 7″ Stainless Rain Cap is a must-have for trucks equipped with large-diameter vertical exhaust stacks. The counter-balanced design ensures responsive movement with no flapping or sticking, even in harsh weather. Built from durable 430 stainless steel, it offers excellent heat and corrosion resistance while providing a show-worthy shine. Whether you’re outfitting a working rig or enhancing a custom build, this rain cap delivers dependable protection and polished aesthetics in one easy-to-install upgrade.
Vehicle Compatibility
Fits all 7″ diameter straight vertical exhaust stacks — suitable for heavy-duty trucks, semis, and custom builds.
Technical Specifications
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Material: 430 stainless steel
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Finish: Highly polished
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Fitment: 7″ diameter straight stack
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Operation: Counter-balanced, pressure-activated
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Item Number: 21328
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Warranty: 1 Year
What’s Included
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1x Stainless Rain Cap for 7″ Diameter Straight Stack
Warranty
1-Year Warranty covering defects in materials and workmanship.
Weather-Ready. Stack-Safe. Shine-Enhanced.
Protect your 7″ exhaust stack with this Stainless Rain Cap—built to keep moisture out and performance up. Order today and finish your exhaust system with function, durability, and polished style.









