Below you can see a direct comparison of the products you have selected. Differences between the products are highlighted in blue.
Installation kit for decentralised ventilation unit with Duo AO-SE heat recovery, comprising ventilation unit with internal cover, highly-efficient enthalpy cross-counterflow heat exchanger, EC centrifugal fans in outside air and outgoing air, 2 x G3 filter, volumetric flow range from 20 to 60 m³/h, model: Attachment to the wall, accessories needed: Duo A-SR shell installation kit and combination wall socket coated in stainless steel (Duo KWS E) or powder-coated in white, similar to RAL 9010 (Duo KWS W)
Installation kit for decentralised ventilation unit with Duo ZO-SE heat recovery, comprising ventilation unit with internal cover, highly-efficient enthalpy cross-counterflow heat exchanger, EC centrifugal fans in outside air and outgoing air, 2 x G3 filter, volumetric flow range from 20 to 60 m³/h, model: Installation in the wall, accessories needed: Duo Z-SR shell installation kit and combination wall socket coated in stainless steel (Duo KWS E) or powder-coated in white, similar to RAL 9010 (Duo KWS W)
* Blue markings show the differences between the products.
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