S&P Soler Palau - TD-125XS - Silent Series Inline Fan. 5 inch round duct - 143 .

As the name suggests the TD-SILENT fans are extremely quiet, low profile mixed-flow fans. Manufactured in plastic material with an external connection box, the body is easily dismantled and has a two speed controllable 115V 60Hz motor. Sound waves are directed through the perforated inner skin and absorbed by a layer of sound-absorbent insulation. 5 Year limited warranty.

All models are: 
- UL and cUL Listed
- Certified by the Home Ventilating Institute (HVI)
- ENERGY STAR qualified
- NAHB - National Green Building Green Approved