- Inside Diameter: 4"
- For vertical installations only
- Required where pipe terminates above the roofline
- Cannot be used with other manufacturer systems
- Rated for continuous use flue temps up to 570 degrees F
- Double wall pipe air insulated design
- 0.012" 430 stainless steel inner wall
- 0.018" galvanized steel outer wall
- For use at elevation 4000' above sea level
Warning: This product can expose you to chemicals including Chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects or other reproductive harm.