20X22X1 Blue Washable Poly Filter WF20221 Merv 5
Blue Washable Poly FilterÂ
20"X22"X1" Wash with warm soap & water reuse many times, Can be used as a pre filter to catch 99% of the dust to take is out and reuse and save money on the expensive throw away filtersÂ
Can cut to fit 
Like Hog Hair but better!Â