Honeywell F300E1019 Enviracaire Whole-House Electronic Air Cleaner, 6 3/4 W x 25 1/2 D x 16 3/16H Inch
Honeywell F300E1001 Electronic Air Cleaner, 16" x 20" | eBay
Converting Electronic Air Cleaners to a HEPA System | FiltersUSA.com Blog
Air Cleaner Repair
Honeywell F300E1027 Electronic Air Cleaner, 20" x 20" with Performance Enhancing Post-Filter: Electronic Components: Amazon.com: Tools & Home Improvement