Fantech 428521 Washable Alu mesh MERV 3 HRV / ERV Filter Kit - Size : 13.75 x 8 Inches - Set of 2
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Fantech 428527 / 414684 Replacement HRV Filter Kit – MERV 8 Aftermarket/Generic Filters Compatible with HERO 200H & 250H – 14 x 5.75 x 1.75 Inches, 2-Pack
Fantech 428527 HRV MERV 8 Filter Kit for HERO HERO 200H and HERO 250H - Size : 14 x 5.75 x 1.75 Inches - Set of 2
