ECOPRO VENT 4 Inch Galvanised Steel Metal Duct Connector Straight Pipe Coupler

PRECISE SIZE COMPATIBILITY Designed for 4 duct systems Connector neck diameter 390 Total length 394 Each male insertion neck depth 177 Features double male fit ends that go directly into 4inch round ducts for a secure inline connection Easy to use Simply slide in the two ducts and fasten with hose clamps or reinforced aluminum ducting tape Best solution for connecting two round ducts incorporating a specialized male fit design thats a secure and airtight connection Increased durability with protrusion in the middle to withstand more pressure and to have a safer connection The connector fits tightly over the ducts minimizing air leakage and optimizing airflow efficiency Each product goes through strict quality control and is well tested to ensure customer satisfaction and to serve for many years to come MANUFACTURED IN EU.