Photo 1 of PATIKIL 6" Round Duct Collar, Galvanized Duct Connector Flange Pipe Collar Take Off Collar for Flexible or Rigid Ducts, Heating Cooling Ventilation Exhaust Fan Vent Systems

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Photo 1 of PATIKIL 6" Round Duct Collar, Galvanized Duct Connector Flange Pipe Collar Take Off Collar for Flexible or Rigid Ducts, Heating Cooling Ventilation Exhaust Fan Vent SystemsPhoto 2 of PATIKIL 6" Round Duct Collar, Galvanized Duct Connector Flange Pipe Collar Take Off Collar for Flexible or Rigid Ducts, Heating Cooling Ventilation Exhaust Fan Vent Systems