ZLINE 2-36 in. Chimney Extensions for 10 ft. to 12 ft. Ceilings (2PCEXT-KECOM)ZLINE's chimney extensions for stainless steel range hoods make it easy to find a range hood that fits your ceiling perfectly. This 2 Piece Chimney Extension will fit all ZLINE range hoods with model number: KECOM (36", 42", 48" only) These Two (2) 36 inch chimney pieces will replace the standard 16 inch chimney pieces (typically supplied with your order) to allow for mounting up to a 12 foot ceiling. Returns are not accepted for ZLINE accessories.