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HY-C 18×18 Inch Chimney Cap – Bolt-On Flue Cover

$70.19 on Amazon.com (as of June 22, 2026, 5:32 AM EST) View details ↗

Upgrade your chimney with the HY-C Shelter Bolt-On Chimney Cap, a high-quality, black galvanized steel solution designed to protect your flue from debris, pests, and harsh weather. This fully assembled chimney vent cap fits existing clay flue tiles measuring between 16½" x 16½" and 18" x 18", ensuring a secure and precise fit for optimal performance.

Crafted from durable 24-gauge galvanized steel with a powder-coated finish, this chimney flue cover resists rust and corrosion while enhancing airflow for better draft efficiency. The integrated 18-gauge expanded steel mesh prevents birds and small animals from nesting, while the sturdy 14-gauge base secures the cap with slotted hex-head bolts. Made in the USA and backed by a five-year limited warranty, the HY-C Shelter Bolt-On Chimney Cap is a reliable, long-lasting addition to any chimney system.

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