Contains an Antimicrobial Treatment by MicroFree to prevent growth and migration of mold, fungus, algae, and bacteria. Also features durable construction for maximum life and humidity output.
- Replace your filter every 4-6 weeks for best performance and comfort
- Approx. Measurements: 14 3/4" x 1 5/8" x 11 3/8"
- Includes: 12 Filters
Fits Humidifier Models: 440
Aprilaire Replacement Humidifier Part Numbers: 12
RPS BestAir Replacement Part Numbers: A12
These Filters are Replacements Manufactured by Best Air RPS Products. Fit and Function are Backed With a 30-day Money Back Guarantee.