duct flanges for sale, brand-new and used.

CHOCTAW H-140 140 HOURS OF USE ONLY! LIKE NEW CONDITION. Military heater, duct space 150K BTU industrial construction portable diesel 1000 CFM.

Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust, 460 CFM, 6" OD flanges

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Heat Pipe Technology Inc - Energy Recovery / Dehumidification Unit - Product: HRHP - Model: FH 12.5inch x FL 48inch, 6R - Serial: 001240 Unit purchased for small warehouse (never put in service - still on pallet) - includes original associated flanges & duct - Sold "As-Is" contact Seller prior Bid and/or Purchase - 205.240.1833 (text only)

Excellent condition. Includes flanges for installing in 18 inch duct.

VARI-GREEN ENERGY EFFICIENT DIRECT DRIVE INLINE DUCT FAN, INLET AND OUTLET ARE APPROX 9X9", UNIT IS 22" LONG PLUS FLANGES AND 12"X12" QUIET AND 115VAC016-10-01-18-294 PLEASE READ BEFORE BIDDING: Look at ALL the photos, not just the first one! SHIPPING IS NOT FREE UNLESS THE LISTING SAYS FREE SHIPPING UNDER THE PRICE WHERE IT SAYS “SHIPPING:” THE SHIPPING CHARGE IS FOR SHIPPING HANDLING PACKAGING AND GETTING YOUR PARCEL

I have 125 feet of Square D 3000 amp Buss Duct complete with joiners and one (1) flat 90 and two (2) edgewise 90'sLoad was not more than 500 amps at any given time. This was from an indoor installation. Please email any questions you may have Also two flanges for a total of 23 pieces  Email any questions you may have