DuraVent DuraTech All-Fuel Chimney Pipe Masonry and Zero-Clearance Fireplace Anchor Plate - For 12" Inner Diameter DuraTech: A venting pipe with an inner diameter of 12" is required for this unit. When it comes to those unique chimney piping jobs, don't let a lack of tools hold you back. The DuraTech Fireplace Anchor Plate allows DuraTech chimney pipes to be used in zero-clearance and brick fireplaces. The stainless steel design provides long-term reliability, and it even comes with a limited lifetime warranty. The DuraTech Fireplace Anchor Plate is designed to fit chimney pipes with a diameter of 12".

Adapts DuraTech chimney pipes for use with zero-clearance and masonry fireplaces For use with chimney pipes with a 12" inner diameter Limited lifetime warranty