DB 204 fits 4 round metal or flexible ducts. Balanced polycarbonate blades for quieter operation.

Depending on the season, lowering or raising your thermostat just 4'' can cost an additional $35 to $50 per month. Running a booster over the same period costs about 60 cents!

Quietly moves air from room to room.

Quietly move heated or cooled air between rooms or floors. This quiet fan is simple to install in any wall from 3 to 6 thick.

DB 206 fits 6 round metal or flexible ducts. Balanced polycarbonate blades for quieter operation. Housing is 8 long with a crimp and bead on both ends for easy installation.

The Inductor In-Line Duct Fan solves air delivery problems without major system rework or expense.

The ThruWall Room to Room Fan balances temperatures in adjoining rooms, quietly and efficiently, for year round comfort.

Imagine being able to walk into a room, press a button and have the airflow only to that room immediately boosted by up to 80%, quietly.

When you want to share warm or cool air or just improve ventilation the ThruWall fan is the answer.

Imagine being able to walk into a room, press a button and have the airflow only to that room immediately boosted by up to 80%, quietly.

The Inductor In-Line Duct Fan solves air delivery problems without major system rework or expense. 2-speed, can be wired for high or low Duct Diameter: 8 Unit Weight: 3...

The Inductor In-Line Duct Fan solves air delivery problems without major system rework or expense.

Accessories & Options Click here for interior exhaust grilles Click here for exterior exhaust vents Click here for all fan switches and timers Click here for 4 flex d...

The In-Line Noise Silencer Duct Muffler reduces furnace noise traveling to register grilles or from adjacent rooms and noisy neighbors up to 9dBA.

Suncourt Inline Centrifugal Fan Model TF108 Centrax Centrifugal Fan Fits 8 Duct. 650 CFM. Serious Air Power With Quiet Operation!