Strong polyester film laminated and encapsulating a heavy, corrosion resistant steel wire helix, forms the inner core and supports a thick blanket of fiberglass insulation. The outer vapor barrier is a new bi-directional reinforced metallized vapor barrier which will not unravel. The smooth air tight inner core of polyester is designed for low to medium pressure systems.
FEATURES & BENEFITS
• Diameter: 7 inches ID • Pressure Rating: (WG) • Positive: 10 inches • Negative: 1 /2 inch • Velocity: 5000 FPM • Temp. Range: -20°F – 250°F cont. • R-Value: R-4.2 • GREENGUARD Indoor Air Quality Certified • GREENGUARD Children and Schools Certified
