RSF6 Ceiling Ring CHARCOAL - Suits 8" outer flue

RSF6 is 6inch inner SS flue and 8inch outer SS flue

RSF6-CRCH suits 0° to 8° pitch ceiling
RSF6-CR15CH suits 9° to 18° pitch ceiling
RSF6-CR22CH suits 18° to 28° pitch ceiling
RSF6-CR30CH suits 28° to 38° pitch ceiling
RSF6-CR45CH suits 38° to 47° pitch ceiling