The Stainless Steel Chimney liner Stove Adapter is used to attach your Stainless Steel M-Flex Chimney Liner to a Fireplace Insert as well as to your Stainless Steel Chimney Liner Elbow, Stainless Steel Chimney liner Insert Boot and Insert Adapter. The Stainless Steel Chimney liner Stove Adapter has an EZ connect clamp to make attaching it to your Stainless Steel M-Flex Chimney Liner quick and easy.