Painted with black heat proof paint up to 800`C. 125mm Flue Pipes. 140mm Flue Pipes. 150mm Flue pipes. AB 31 to AB 38, AB 40 to AB 56, IV 1 to 28, IV 30 to 32, IV 36 & 40, IV 52 to 54, IV63, KW 1 to 14, PA 21 to PA 38, PH 4 to PH 41, PH 49, PH 50.