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The UNICONTROL UPC-15-085S-4 is a square fiberglass end cap that fits eight point five inch by eight point five inch square ducts. This end cap has an R-value of R4.2 and is built for rigid duct types, functioning as a plenum fitting. It performs well in high-velocity applications. Each box includes four end caps.
Ideal for use in HVAC systems requiring efficient insulation and sealing.
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