Door port balancing and 3 select high-speed settings. Featuring our patented HEX Core.
- High-Efficiency Hex Core.
- Door Port Balancing & Adjustable Dampers.
- Excellent Low-Temperature Performance.
- Energy Star: This product earned the ENERGY STAR® by meeting strict energy efficiency guidelines set by Natural Resources Canada and the US EPA. It meets ENERGY STAR® requirements only when used in Canada.