Frost King commercial grade, high temperature, self-sealing fiberglass 3-ft long tube with reinforced foil and paper wrap. Use for 1-1/2-in diameter pipes immediately exiting furnace and water heaters, where foam pipe insulation might not be appropriate. The advanced adhesive closure fastens and installs with no need for staples or tape. The all-service-jacket exterior, made of polymer film, is smooth, durable, cleanable, wrinkle-resistant, resists water staining and doesn't support mold or mildew growth.
Pre-slit, self-sealing fiberglass tube
For 1-1/2-in diameter pipes
Self-sealing, reinforced jacket exterior
For steam heat systems and hot water heaters
Self-sealing - no taping required
Commercial grade for high temperature use
Fully building code compliant
Outer jacket doesn't support mold or mildew growth
Maximum operating temperature of 1,000°F (538°C)