Designed for reliable round vent connections, the Imperial 7 in. D 28 Ga. Galvanized Steel Round Starting Collar delivers a sturdy, corrosion-resistant starting point for your chimney vent run. Its 7-inch diameter and 28-gauge galvanized steel body strike a balance of durability and light weight, making it a practical choice for both DIY projects and professional installations.
Key features
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Diameter: 7 inches — matches standard round vent components for a seamless connection.
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Material & Gauge: 28-gauge galvanized steel provides a capable blend of strength, ease of handling, and cost efficiency.
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Finish: Silver galvanized coating offers dependable corrosion resistance in attic, crawlspace, or exterior environments.
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Packaging: Bulk packaging supports contractors and larger jobs with fewer shipments.
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UL Listing: Not UL Listed — plan installations accordingly if your project requires listed components.
Where it fits
The Imperial round starting collar is engineered to initiate a round vent run from standard 7-inch round ductwork. It provides a clean, secure transition point at the start of a chimney vent path, helping to minimize air leaks and maintain proper alignment as you extend your vertical or horizontal venting system.
Practical applications and scenarios
- Residential venting projects where a robust, easy-to-install starting point is needed for a round chimney or vent pipe.
- Retrofits and new installations that require a lightweight, corrosion-resistant collar to bridge components.
- Projects that benefit from bulk packaging to keep multiple collars on hand for ongoing work.
Installation tips
- Ensure all mating surfaces are clean and dry before assembly.
- Position the collar so the 7-inch opening aligns precisely with your round vent components.
- Use appropriate fasteners and sealant per local code and manufacturer guidelines to secure the connection and prevent leaks.
- Inspect the completed connection for proper alignment and a snug fit to maintain efficient airflow.
Care and maintenance
Periodically inspect the collar for signs of corrosion or wear, especially in areas exposed to moisture. Reseal or replace as needed to preserve a tight, secure connection and optimal vent performance.
Choose the Imperial 7 in. D 28 Ga. Galvanized Steel Round Starting Collar when you need a dependable, purpose-built starting point for your round vent system. Its combination of 7-inch diameter, 28-gauge galvanized steel, and bulk-pack convenience helps you complete installations with confidence and efficiency.
