- A smart 2-pack of G4 / F7 replacement filters for your ventilation unit, designed for clean, allergen-friendly indoor air.<br> - Replaces your existing air filters; tool-free filter replacement for easy maintenance.<br> - All compatibility details and technical specifications are listed below.<br> - These replacement filters quickly restore your ventilation unit to full operation.<br> - The G4 pre-filter captures large particles such as hair, insects, sand, and coarse dust from the incoming air.<br> - The F7 pollen filter provides additional protection by capturing fine dust and pollen.<br> - Together, these filters prevent outdoor pollen and dust particles from entering your ventilation system.<br> - Filters are easily inserted into the unit’s slide-in slots without tools.<br> - For optimal performance, replace the filters regularly.<br> - This filter set upgrades your ventilation unit to F7 pollen filter class without requiring an external pollen filter housing.<br> - Note: Airflow direction is clearly marked on each filter.<br> - Package includes: 2 filters (G4 / F7)<br> - Technical specifications:<br> - Dimensions per filter (L x W x H): approx. 50 x 17 x 1 cm<br> - Filter class: F7 (red pollen filter) / G4 (black pre-filter)<br> - Type: Pollen filter / pre-filter<br> - Material: Synthetic fiber / plastic<br> - Color: Black / white / red<br> - Compatible with the following models (use Ctrl + F or Cmd + F to search for your model):<br> - Zehnder ComfoAir 350, 550, 300 Standard, 375 Standard<br> - Zehnder ComfoD 300, 350, 450, 550<br> - Paul Santos 370, 570<br> - Wernig G90-380, G90-500, G90-550<br> - Wernig ComfoAir 350, 550<br> - Aeris 350, 450, 550<br> - R+F ComfoAir 450<br> - R+F Optiline KWL 350<br> - Sanibel ComfoAir 350