Retrotec US6340 Stacking Panel System with Model 6000 Triple Fan

Part Number: US6340
On Sale: $18,200.00 $13,104.00
Your Savings:$5,096.00(28%)
temporarily out of stock - back in stock in 5 to 10 days

Retrotec US5210 Blower Door with Model 5000 Double Fan - Large Cloth Panel

Triple Hi-Power

Install any number of fans in any opening with our new stacking panel that replaces the old 3 Fan Folding Panel used in the Model QMG.

Why “stacking”? Carry them to the test site in a stack that is 30x30” and as high as needed for any number of fans. Get a lot more panels in a small space making shipping faster, cheaper and easier.

Just clamp a wood frame into any size of opening and use blank sheets to fill other openings as needed. Then screw the Stacking Panels onto the frame and you can snap in any number of Model 1000, 5000 or 6000 Fans. That’s it- you’re ready to test.


  • Faster to install
  • One tenth the panel leakage
  • Fits any size opening
  • Fans won’t fall out

These same panels permit:

  • Under Floor Air Distribution (UFAD) testing with Model 1000, 5000 or 6000 Fans
  • Rain Penetration Tests with 6000 Fans
  • Large Commercial ducts with 4000 Fans
  • Durable design
  • Easy folding set up
  • Light-weight construction
  • Includes carrying case

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