Rockford Chimney Supply Stainless Steel Chimney Rain Cap RockFlex, Round 8 Inch RockFlex Round Chimney Rain Caps feature our Quick Connect System for easy installation RockFlex Chimney Cap includes mesh screen to fight weather, debris, and animals Rust Free, Stainless Steel Chimney Caps made with pride in the USA Installation support before and after the sale; we're here to help you do it yourself Fasten down the quick connect clamp to collar of flex liner top plate or chase cover; easy install