Exclusive Features Complete 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.