Helios Ventilatoren 00039 | ELF-KWL EC 450/4/4 - 500/4/4, ELF-KWL EC 450/4/4 - 500/4/4, Ersatzfilterset KWL EC 450 1 Stk G4 Abluft, 1Stk G4 Zuluft | REXEL Germany