Blauberg Komfort EC SB 350 / Vento V 350 (S11, S14, S21) – Original ZERN Enthalpy Exchanger
Original ZERN EC-EX series enthalpy exchanger for Blauberg Komfort EC SB 350 and Komfort Vento V 350 units. Fully compatible with all control versions (S11, S14, S21). Genuine factory part.