The Wall Hood Chimney Extension Kit Has A Stainless Steel Finish And Extends Your Kitchen 36" Hood In A 48" Opening. Simply Install The Extension Panel To Each Side Of The Hood Main Unit And Fasten The Hood Extension Panel To The Cabinet. The Kit Includes (2) Extension Panels And (8) Installation Screws And Must Be Assembled To The Range Hood Prior To Mounting The Hood To The Cabinet. This Kit Is Designed To Be Used With Several Standard Hood Brands; Check To See If Your Model Is Compatible. Installing This Accessory Will Require Basic Hand Tools, Some Disassembly Of The Range Hood And Novice Repair Experience. You Must Unplug The Vent Hood Or Shut Off The House Circuit Breaker For The Appliance Before Installing This Part.