General description Reduced T-fitting designed for effective joining of round air ducts, made from durable galvanised steel sheet and featuring double EPDM rubber gaskets for enhanced sealing. Technical specifications Material: Galvanised steel sheet Gaskets: Double EPDM rubber Nominal size round duct: 160 mm Nominal size reduced side outlet: 100 mm Length: 184 mm Airtightness class: D (according to European Standard EN 12237)