Exclusive FeaturesComplete 304 Stainless Steel Construction For Use With C1Hood & C1Liner Ventilation Models Dimensions Low Flue (Model: C1Flue8) – For Ceilings 8 To 8’6″ Medium Flue (Model: C1Flue10) – For Ceilings 8’6″ To 9’8″ High Flue (Model: C1Flue12) – For Ceilings 9’8″ To 12 Outdoor Flue Disclaimers And Warnings: Warning – Prop65 Notice – Ca Residents Only Www.P65Warnings.Ca.Gov.