Custom filter frame and 1 year supply (6) filters Health Smart filter frame and (6) Biosponge insertsFilter Frame And 1Year Supply Of FiltersSKU: 0003 $189.00 Regular Price$179.00Sale PriceFilter Width (optional)SelectWidth Fractional (optional)SelectFilter Length (optional)SelectLength Fractional (optional)SelectQuantity*Add to CartBioSponge Plus® Refills (6) 1 Year SupplySpecifications: MERV: 8 Aegis germ-fighting technology Arrestance : 93% @ .50" w.g. Airflow: .19" w.g. @ 300 fpm Thickness: 3/4" Replace every: 60 daysRETURN AND REFUND POLICY60 Day Money Back Guaranty.Customer is solely responsible for measurements of filters.