Coupling with maintenance door for round duct.
TLN3 meets tightness class C requirements EVS-EN 12237:2003.
Product label: TLN3 d
Product Group Manager
NORDexternal, NORDduct, NORDsilencer, NORDdoor, NORDdiffuser & NORDgrille
Product Group Manager, NORDcoil, NORDsilencer, NORDdoor & NORDaccessories