Designed to maintain consistent airflow and help support cleaner indoor air in your home ventilation system.

🔹 Product Overview

Experience a healthier indoor environment with the Staubi-Express G4 + G7 Filter Set, a premium-quality replacement engineered to match original equipment standards for Zehnder ventilation systems.

This comprehensive kit features a dual-filter design engineered for balanced, dual-action air purification. It includes a G4 coarse dust filter for the exhaust air stream—which captures larger particles to protect your system from premature wear—and a high-performance G7 fine dust and pollen filter for the supply air stream. Together, they effectively trap microscopic allergens, outdoor pollutants, and seasonal pollen, ensuring your family breathes clean, fresh air year-round.

🔹 Compatibility

This set serves as a direct, high-quality alternative to original Zehnder parts. It is fully compatible with the following systems and models:

• Zehnder ComfoAir Series: ComfoAir 350, ComfoAir 500, ComfoAir 550
• Zehnder ComfoD Series: ComfoD 350
• Zehnder ComfoBox Series: ComfoBox, ComfoBox Apart
• Geothermal Heat Exchangers: ComfoFond-L Eco

⚠️ This is a compatible replacement filter set and is not an OEM product.

🔹 Technical Specifications

🔹 Recommended Replacement

For best performance, replace the filters periodically based on usage, air quality, and environmental conditions. Regular replacement helps maintain consistent airflow and system efficiency.

🔹 Cross-Reference Part Numbers

This filter set is designed to replace the following original manufacturer part numbers:

400100084, 006040220, 400100066, 006040230, 006040250, 006040200, 400100065, 006040210, and T; 0303033.

🔹 Package Includes

• For Item Package Quantity 1 - One Pre Filter + One Fine Filter
• For Item Package Quantity 2 - Two Pre Filters + Two Fine Filters

🔹 Before You Buy

• Confirm your unit model (ComfoAir / ComfoD / ComfoBox / ComfoFond-L)
• Check your existing filter size
• Identify filter type (G4 pre-filter + G7 fine filter)