This Firman Compatible Generator Exhaust Extension Allows For Safe Venting Of Exhaust Fumes From An Enclosure (Zombiebox) Or Unoccupied Space, Like A Shed Our Outbuilding. The Buyer Will Receive: (1) Exhaust Adapter (1) 2ft. (Apprx.) 1-1/2 I.D. Flexible Galvanized Exhaust Pipe (1) U-Bolt Clamp Fits For Firman Models T07573, Wh03242 & H07552 This Adapter Fits Most Firman Generator Mufflers. Fits All Mufflers With No.68 & 88 Spark Arrestor Screen - Or - Fits Any Muffler With 1-1/2" To 1-3/4" Apart, Spark Arrestor Hole Spacing. The Exhaust Adapter Bolts Onto The Generator's Stock Muffler. Remove The Existing Spark Arrestor And Bolt To Muffler Outlet, Re-Using Original Bolts. *Muffler Bolts And Gasket Not Included - Re-Use Your Originals