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Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4
Master Flow 4 in. Dia. Starting Collar SC4

Master Flow 4 in. Dia. Starting Collar SC4 49172165

USD $2.42

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Master Flow 4 in. Dia. Starting Collar SC4
2.42
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The Master Flow 4 in. Diameter Starting Collar is crimped for easy installation. This starting collar can be used to transition from a flat surface such as an unlined metal plenum to round metal pipe. Can also be attached to most unlined metal ductwork， such as rectangular duct. Constructed of galvanized steel， this starting collar is made for durability.

Made of galvanized steel

Fits most 4 in. metal pipe

Helps transition from unlined metal duct to round pipe

Seal seams with code-approved mastic， sealant or duct tape (sold separately)

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