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For transition from air plenums or rectangular duct to round pipe or insulated flexible duct. Crimped collars for interlocking fit.
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Combines the properties of two popular insulating materials in one handy roll. It can be used on both heating and air-conditioning ducts, as well as on car and truck hoods and trunks.
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Imperial Butterfly Damper, Galvanized, 6 in Dia
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Billy Penn Roof Jack, Nominal Size: 3 in, Galvanized Steel, Suitable for: 4/12 Pitched Roof
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Billy Penn Roof Jack, Nominal Size: 4 in, Galvanized Steel, Suitable for: 4/12 Pitched Roof
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Billy Penn Roof Jack, Nominal Size: 6 in, Galvanized Steel, Suitable for: 4/12 Pitched Roof
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