High output replacement humidifier filter
Fits Thermolec furnace mount humidifier models 500, 550, Pro 600
Filter has up to 50 percent higher output over traditional metal mesh filters.
For best performance, change at least twice per season
The filter is also industry defined as a water panel, water evaporator pad, or media filter.
Measurements: 9 1/2" x 9 3/8" x 1 7/8"
These Filters are Replacements Manufactured by Best Air RPS Products. Fit and Function are Backed With a 30-day Money Back Guarantee.