Product details:

This Copper Chimney Cap is a heavy duty cap with a unique installation design. The mounting bolts are located in the corners so the cap is securely fastened to the flue tile. Made of 100% Copper, a 24 gauge lid, and 18 gauge screen that is 6 1/2 high, this cap is a good choice for homeowners looking to protect against critters and rain. Note: This cap has a 3/4" mesh design and is not approved for use in California.Note: Chimney caps are required to have no larger than 5/8" mesh openings in the state of California.