Fiberglass duct liner ToughGard Ultra*Round offers acoustical, thermal, and moisture control performance for spiral duct applications. It is a fiberglass duct liner overlaid with an extremely tough ...
CertainTeed Machine Works has introduced the Glass Master SG-420 Duct Board Grooving Machine – a powerful machine that fabricates high-quality fiberglass spiral ducts more accurately, and up to 50 ...
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