Blower Doors | Retrotec Blower Door Systems

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4211 Blower Door set up in the doorway
Super high flow of 5000 CFM at high test pressure of 500 Pa.
Everything you’ll need to test on wide range of buildings. Complete your first test in minutes with the easy to follow Quick Guide.
Most popular for testing houses and small commercial.
Hard Panels create the most professional look of any blower door system. Rapid installation in a fraction of the time add to the image.
Make a positive professional impression.
The 5211 Blower door system, complete with accessories (accessories may not be exactly as shown)
2 regular Classic fans in one doorway.
3 regular fans in one doorway
Laptop on Fan Case with the gauge on Gauge case.
Double the power of any blower door.
Sleek, Professional and Fast.
2 high power fans in one doorway gives maximum flow per $.
3 high power fans in one doorway.
Replaces the Triple Folding Panels