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4" flexible aluminum duct for fresh air intake - made in the USA by Z-Flex. This item is designed fo..
$ 2.45
3-ply, heavy-duty aluminum duct designed for connecting fresh combustion air intake on the appliance (boiler, water heater, etc.) to a Z-Vent concentric vent kit (such as 2SVSHTC43S, 2SVSHTC03S, 2SVSHTC04S or similar) or to a termination hood (such as 2SVSHTX03, 2SVSHTD03, 2SVSHTX04, 2SVSHTD04 or similar).
Can be secured using 7HS44XX or 7HS64XX gear clamps (recommended), as well as aluminum duct tape.
Note 1: sold by foot. Indicate length required in Qty field when ordering - will ship one continuous length (for example, Qty=5 - will ship a one piece 5ft duct).
Note 2: This duct is expandable in length and will ship contracted to minimize costs.
