
Modern Round Stainless Steel Anti Downdraught Chimney Cap High Wind Cowl. Reliable Chimney Round Top: Rainbow chimney cap supports safe exhaust flow for stoves, furnaces, fireplaces, and water heaters. Efficient Venting Feature: Designed to promote consistent airflow and prevent debris from obstructing chimney systems in residential applications. Durable Stainless Steel: Constructed from strong stainless steel to provide long-lasting performance and withstand outdoor elements. Accurate Size & Fit: Measures 4/5 inches in diameter; Customers should measure carefully and confirm compatibility with their chimney system. Trusted Heritage & Safety First: Rainbow has led HVAC innovation with durable, efficient, UL-tested products engineered to exceed safety standards.