Accessories : Leakage Split Kit

Retrotec’s leakage split kit provides everything you need to conduct a two fan lower leaks test with your Retrotec blower door systems. Using two of our Q56 or Q5E systems you can conduct a below ceiling leakage or subfloor test in virtually any situation.

By letting you determine the location of leaks, the two fan test often produces results that clearly demonstrate a room passes the NFPA retention test in cases where a single fan test shows that a room fails.

Rapid Setup

A two fan test using Retrotec’s leakage split kit is the fastest way to set up a lower leaks test. While other methods can produce the same results, they may mean you need to spend hours setting up to conduct a single test.

Get Proper Training!

The NFPA standard requires that all door fan test operators be thoroughly trained. Retrotec’s Level Three Enclosure Integrity Training arms you with the information you need to effectively perform a lower leaks test. Ask your Retrotec representative for information about training when you call.

Leakage Split Kit Contents

Your Retrotec leakage split kit includes:

  • A flex duct for your Retrotec series 2000 or 3000 fan. Your flex duct includes a protective carrying case that’s perfect for storage as well
  • A field calibration plate for your modular hard panel system
  • A subfloor test panel that fits most common raised subfloor tiles

Leakage split kits are available in Imperial (U.S.) or Metric sizing. Please specify when ordering.

Leakage Split Kit Photographs


Flex Duct for 2000 or 3000 series fans


Subfloor Test Panel
2 feet by 2 feet (Imperial)
600mm by 600mm (Metric)


The Retrotec Field Calibration Plate for use with all series 2000 modular hard panel systems.


Two Q56 systems with the flex duct being used.