Draft Failure, Poor Performance, Moisture, or Odor Problems.  Dangerous build-up of Carbon Monoxide.  All this can result from inadequate ventilation.  An Intelligent solution for make-up air, Filtered, Adjustable, and Draft-Free is the ASV-90 Air Supply Ventilator.

• Tough Molded ABS Polymer
• UV and Temperature Stable
• Condensation Resistant
• Three Year Warranty
• Complete with 2 Tubes, Dust Filter and Hardware Pack