Accommodates single and multiple exposed line sets | Includes tap screws | Easy to install | Perfect for minisplits, high velocity, and conventional ducted air conditioning systems | UV, fire, and weather resistant | The coupler joins two 3.75 in. (100 mm) ducts to accommodate long lineset runs | Weather resistant PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4°F to 140°F | Complements any residential or commercial building. Available in SD77 (2-3/4 in.), SD100 (3-3/4 in.), SD140 (5-1/2 in.) and 3 color options (white, ivory, and brown) | 78" duct lengths
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