Honeywell F100F1004 Media Air Cleaner
List Price: $9,999.99 Sale Price: $9,999.99
This component is OBSOLETE AND NO LONGER AVAILABLE. Model number F100 is designed for convenient installation with any type forced air heating/cooling system. No electricity required, but installation may require minor sheet metal work. Cabinet capable of being upgraded to electronic model in the future. MERV 8 rating.
Energywise HVAC by Charles Jackson (lagrange ga US)
These are by far the best dumb filters on the market, I have sold 100's of them.