Round Ducting Reducer 125mm to 100mm - 5 to 4 inch Duct Pipe Reduction Connector

Important – Size Information This reducer connects 125mm (5") ducting down to 100mm (4") ducting. 125mm to 100mm reducer – connects 5" ducting to 4" ducting. One side fits 125mm (5") ducting and the other side fits 100mm (4") ducting.