Product details:
Standard One Inch Replacement Filters 18 x 18 x 1 Glasfloss GDS18181 Overview These disposable filters or (throw away filters) are usually the type that comes with your heating and cooling equipment. They are designed to meet the minimum requirements of the manufacturer for protecting the equipment. The media is a woven fiberglass material and the frame is of the heavy cardboard type. They have a nominal size that is in whole inches. The actual size is a fraction smaller. The nominal 1 inch thickness is actually 3/4 inch. Actual Size in Inches - 17 5/8 x 17 5/8 x 3/4 Part GDS18181 These Filters Are Sold In Cases of 12. Prices are per case quantity.
