All in one Pot Hanging Cowl and Flexible Liner Adapter for 5”/125mm Flexible Liner. Used but still fine for re use. Made from stainless steel so will go on for years. Secured to the chimney pot with a jubilee type fixing strap which is included. The strap that holds the liner to the bottom of the cowl is missing, so I’d be inclined to use self tapping screws to secure it.
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