Description
Round Metal Pipe Reducer & Increaser 12" to 7" HVAC Duct Reducer or Increaser 30g Gauge Galvanized Sheet Metal Ducting Connector is Compatible with Duct 7" Grilles + Product Details Size – MFRG2420W HP + Product Details Size – 10" x 18" or 18" x 10" is the size for the duct opening measurement only actual front end outer dimensions are 21" Width X 21" Height plus { display: inline block textContent = '+'