FILTER 16 X 20 X 1 NATURALAIRE M13 Window Insulation Kit Waterworker tanks feature an appliance

Waterworker tanks feature an appliance quality finish which is resistant to sunlight and harsh conditions

casted steel

easy replacement

Comes with an interchangeable 36 inch fiberglass shaft

seals in skim coat & spackling

FILTER 16 X 20 X 1 NATURALAIRE M13 Window Insulation Kit Waterworker tanks feature an applianceMERV 13. The top tier of filters for contaminant removal in residential retail air filters. Also for application in general surgery, hospitals, and health care facilities. Up to 90 days effective against pollen, pet dander, dust mites, dust and lint, smoke, mold, smog, bacteria, virus carriers, microscopic allergens, oil, smoke, and lead dust. Electrostatically charged. Wire backed media.