6" Room Sealed Flue Ceiling Ring

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

RSF6-CR suits 0° to 8° pitch ceiling
RSF6-CR15 suits 9° to 18° pitch ceiling
RSF6-CR22 suits 18° to 28° pitch ceiling
RSF6-CR30 suits 28° to 38° pitch ceiling
RSF6-CR45 suits 38° to 47° pitch ceiling