Round Metal Pipe Reducer & Increaser | 7" to 3" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 3" Color_R-8.0 Pink + Product Details Size & 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size & Compatibilty - The 10" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 4"

+ Product Details Size: 30w x 40h cm

Design – This airflow control component are made to connect to HVAC diffuser and restrict airflow

+ Product Details Size – 16" x 28" or 28" x 16" is the size for the duct opening measurement only

Our coils have a very high PSI burst pressure

Round Metal Pipe Reducer & Increaser 7" to 3" HVAC Duct Reducer or Increaser 30g Gauge Galvanized Sheet Metal Ducting Connector is Compatible with Duct 3" Color_R 8.0 Pink + Product Details Size & 4 X 12 Is CRFG2028 Width_14in + Product Details Size & Compatibilty The 10" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 4" + Product Details Size: 30w x 40h cm