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300 Passive-House System



Most accurate Passive-House system

Nothing has ever been built with so much flow measurement innovation. More power, less weight, and the ability to run for hours on batteries.

Smaller window frame option: Min Width x Height of 16 x 28” to Max 27”x 51” at same price. Simply Request a Quote!

Who uses it?

  • Energy Auditors, HVAC Contractors, Building Contractors & Remodelers, Home Inspectors

Why Buy This Model?

  • Ideal for small, tight houses and apartments or ducts.
  • Engineered square corners on the door panel make this system 75% tighter than any other, making this the perfect Passive House system.
  • Aluminum Frame has quick connect injection molded corners that decrease set up time with our snap together, snap apart frame while reducing leakage by 75%.
  • The flow nozzle and centrifugal fan measure extremely accurately from 3 to 0.03 Air-changes per Hour at 50 Pa.