Basic Rain Cap for 5" flexible flue liner.
Designed to fit over the outside of a chimney liner (usually in conjunction with a top plate, clamp and insert sleeve - sold separately), this Top Cowl requires securing in place with cement or screws (not supplied).
The base of the 5" (125mm) Top Cowl measures 5.75" in diameter, allowing the Top Cowl to sit over the top of your Flexible Flue Liner, not inside. It can then be fixed in place with cement or mortar used to secure the Top Plate and Clamp.
This item is NOT designed to be used with any other flue system including Twin Wall or Vitreous Enamelled flue pipe.