Lennox Healthy Climate # 75X73 Catalyst Insert Assembly by Lennox

Lennox Healthy Climate # 75X73 Catalyst Insert Assembly NOTE: Product has been re-designed. The metal insert will be transitioning from multiple flat and corrugated foil fins to an expanded honeycomb surface. The new design is more compact. The thickness of new inserts will change from 2" to 1" deep frame when shipped. This manufacturing change provides a more robust insert while product performance and maintenance cycle (2 years) remain unchanged. Replace metal insert and lamps every 24 months. Replace insert more frequently if you notice a significant drop in odor removal efficiency. If you find that you need to replace the insert more frequently than every 24 months, consider source reduction and/or ventilation to reduce the levels of contaminants in your home To ensure performance of the PureAirT Air Purification System, the filter, UV lamps and PCO metal insert must be changed-out according to recommended maintenance schedules: PCO-12C / 20C (1st Generation): Filter chan