True Blue Fiberglass FPR 1 Air Filter is a disposable filter. Filter is designed to help reduce dirt buildup in air ducts， air conditioners and furnace systems. Filter is designed to protect the HVAC system. The frame is cardboard. Last up to 30 days.
Fiberglass filter design
Lasts up to 30 days
Helps reduce dust and dirt buildup in air ducts， air conditioners and furnace systems
Cardboard frame material
Note: product may vary by store
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