Clay flues CF15 Ext. Size Int. Size Height 25 x 25 15 x 15 25 cm CF23 Ext. Size Int. Size Height 30 x 40 20 x 30 25 cm CF40 Ext. Size Int. Size Height 50 x 50 40 x 40 25 cm 2-hole flue Code Ext. Size Int. Size Height CF2F 25 x 50 15 x 40 25 cm
