Buy from Amazon.com : http://best.waitmejapan.com/?asin=B004PWLDJG
Glasfloss Industries ZLP20201 ZLine Series ZL MERV 10 Pleated Filter Case of 12
Product Description :
MERV 10 Performance - Nominal Size 20x20x1 - Exact Size 19-12 x 19-12 x 78
Extended surface 14 pleats per linear foot
Made in the USA
Heavy-duty moisture-resistant construction
Galvanized expanded metal backing
