The Viskon-Aire Series 55 self-seal panel filters are manufactured from high quality synthetic 2-ply polyester fibers. The media is progressively structured and the internal wire supports and heat sealed seams eliminate media flutter and particle migration. The internal steel wire frame is welded and springs into place with a force fit into the filter holding frame eliminating any air bypass around the filter. 24 20" x 20" filters
Emma Martinez - 2024-03-03
My order came so fast, and the quality blew me away. Excellent price for such high quality, and the customer service was fantastic.