Female coupling made of expended polypropylene (EPP) for connecting ducts and fittings. The coupling is used to connect all elements of the EPP duct system: duct+duct, duct+fitting, fitting+fitting.
The female couplings are produced in the following diameters: 125 and 150mm.
Thermal conductivity: 0.039 W / m * K
Airtightness class: C
Surface roughness: 0.077 mm