Lennox MERV 11 HCF20-10 Replacement Filter
The Lennox Healthy Climate x6673 HCF20-10 filter is OEM for Lennox HCC20-28, but this filter also fits a variety of additional units from other manufacturers. This filter fits into your existing unit to provide filtration without adding to your energy costs. Remove particles such as dust, dirt and mold spores with 85 percent effectiveness. Trap particles responsible for allergies and lung irritation, and breathe easier by replacing your air filter regularly.
When replacing your filter, point the arrow toward the vent. Shut off your unit to prevent any fan interference. Write the replacement date on your filter for quick and easy reference. Replace filters every six months.
Lennox is converting their MERV 10 filters to MERV 11. The same part #'s will be used.