TAB™ (True Automated Airflow Balancing) provides constant air flow at any elevation or under any condition, innovative engineering and design facilitate two separate functions; HRV or ERV and the unique tilted core design provides maximum drainage to maintain high efficiency.

Low profile design for maximum space efficiency together with advanced sound reduction engineering make Primus™ the quietest in the industry. Advanced recirculating defrost ensures peak performance at all times.

Primus™ is your first choice for technology, performance, and efficiency.