Buy from Amazon.com : http://best.waitmejapan.com/?asin=B00CJZ7VJC

FilterBuy 14x30x1 MERV 8 Pleated AC Furnace Air Filter Pack of 4 Filters 14x30x1

Product Description :
14x30x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace Pack of 4 Filters AFB Silver MERV 8 comparable with MPR 300 600 clean living and dust pollen
MADE IN THE USA Manufactured by FilterBuy in the USA using 100 American made components Save big on a premium product by purchasing directly from the manufacturer
TRAPS 90 OF AIRBORNE PARTICLES Say goodbye to dust debris lint pollen and pet dander Say hello to better indoor air quality
LONG-LASTING Designed to last up to 3 months Ideal for residential and commercial use
HIGH QUALITY Filter frames are made of beverage board which stays strong through humidity and temperatures up to 200 F Synthetic media provides significantly higher particulate efficiency than standard cotton media