Duct Liner Products

Spiral SG

Spiral SG Double Wall Insulation is a thermal and acoustical, rotary process, fiber insulation designed for use in double-wall spiral HVAC ducts.  To optimize performance, the product is offered in a range of densities and thicknesses. The resilient fiber glass blankets resist damage during fabrication and carry a UL Fire Hazard Classification rating of 25/50.

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