Photo 1 of *** used***** Otoolling 1 Pcs 10 Inch to 7 Inch Duct Reducer Increaser Galvanized Steel Air Duct Adapter Round Crimped Pipe Connector Fitting Coupling for HVAC Ventilation Systems

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Photo 1 of *** used***** Otoolling 1 Pcs 10 Inch to 7 Inch Duct Reducer Increaser Galvanized Steel Air Duct Adapter Round Crimped Pipe Connector Fitting Coupling for HVAC Ventilation SystemsPhoto 2 of *** used***** Otoolling 1 Pcs 10 Inch to 7 Inch Duct Reducer Increaser Galvanized Steel Air Duct Adapter Round Crimped Pipe Connector Fitting Coupling for HVAC Ventilation SystemsPhoto 3 of *** used***** Otoolling 1 Pcs 10 Inch to 7 Inch Duct Reducer Increaser Galvanized Steel Air Duct Adapter Round Crimped Pipe Connector Fitting Coupling for HVAC Ventilation Systems