The Faber HIGHSYNT High Ceiling Kit for Synthesis is for taller than average ceilings. Most stainless steel wall-mounted and island-mounted canopy vent hoods have a high ceiling chimney kit available. The upper chimney cover that comes with the vent hood is replaced with a taller chimney cover kit to accommodate a higher ceiling. Most hoods can reach 11-Ft. ceilings when using this kit. Accommodates Synthesis hoods.