DEF Laundry Exhaust System 6,000 cfm Simple & Up To
MORE INFO Cleanout Access Aluminum

ABOUT The DEF Dynamic Exhaust Fan from LFSystems offers a G90 galvanized steel housing with a dynamically balanced backward inclined (BI) or curved (BC) impeller and inlet ring constructed of 5052 Aluminum with capacities up to 6,000 CFM. The DEF is ETL listed for our Laundry Exhaust System, Supply Air System & High-Rise Exhaust System. It is also a great option for bathroom and domestic kitchen exhaust.. With direct drive, belt-free motor and a tool-less access panel for cleanout, theDEF is the perfect choice for your application.​

When combined with an L-Series controller, the DEF maintains proper pressure in the duct or room under all conditions.​
Control Options Control Options - High-Rise Exhaust System​
- Up to 3 Exhaust Sensors​
- 7” Color Touchscreen
L330 Constant Pressure Controller​
Learn More L150 Constant Pressure Controller​
- Laundry Exhaust System​
- Supply Air System​
- Laundry Exhaust & Supply Air System​
- High-Rise Exhaust System​
- Simple 4-button LCD interface
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