Dura-Vent Type B Gas Vent Wall Thimble - For Vent Pipes with a 4-Inch Diameter - 4GVWT

Venting your heating appliances is complicated enough without worrying about every wall you need to pass the pipes through. Eliminate your 'wall worry' by using this Dura-Vent Wall Thimble when passing Dura-Vent Type B vent pipes with a 4 inch inner diameter through a combustible wall. There are walls involved in nearly every venting installation, so this accessory comes into play more often than you'd think.

This thimble works perfectly with other Dura-Vent Type B 4 inch inner diameter vent pipes and components. It carries a limited 25-year warranty and it is designed for use with combustible walls of thicknesses ranging from 3 1/2 inches to 6 inches. Save money, save time, and save yourself a lot of hassle by tackling a combustible wall pass-through with a Dura-Vent Type B Wall Thimble.

• Provides required combustible clearance for through-wall venting
• For use with 4" Dura-Vent Type B Gas Vent pipes
• Adjusts to accommodate walls with 3.5" to 6" thickness
• 25-year warranty