12-inch Section Hi-Temp Superior Double Wall Pipe Snap Lock 12-12HT Product Details
This is Superior’s 12-inch Section Hi-Temp Double Wall Pipe Snap Lock, known as 12-12HT. Ensure durability and efficient venting for your fireplace system with this high-temperature resistant component, designed to withstand the rigors of continuous use.
Features:
- Comfort Glow, Comfort Flame, Desa, Design Dynamics, FMI, Vanguard, Vantage Hearth, Superior, IHP
- Each double wall chimney section consists of a 15″ diameter galvanized outer pipe, a 12-3/8″ diameter stainless steel inner flue pipe, and a wire spacer
- Actual lengths gained after fitting overlaps must be taken into consideration (lineal gain)
- Lineal gain is the actual measurable length of a part after two or more parts are connected








