Class 1 Air Ducts
Tested and certified according to the standards UL 181 / ULC S110 Class 1 air connector.
INSULATION: Non-Carcinogenic TEXTRAFINE (R4.2) 1 - 1 1/2” thick and 1lb density.
VAPOR BARRIER: Aluminum Foil Jacket.
TYPE RIA 3 ply aluminum foil, totalling 45 mi- crons thick (.009mm) and resists up to 20” of static pressure. The inner, middle and outer plys incapsulate a spring steel helix and contain no openly dangerous constituents such as mylar (plastic) or neoprene.
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