The Square Terra Cotta Top Plate features a square opening for our Square Flex Liners. The Square Terra Cotta Top Plate comes with stainless steel screws to secure the top plate via a friction fit. See our Terra Cotta Top Plate Sizing Chart. Please select the top plate size and square collar size in the menu below.

See our Top Plate & Chimney Cap Options Product Overview for a detailed explanation of each option.

Note: Square chimney liner components are custom made to your specifications and are not refundable. Please contact us if you have any questions.