Koch Air Filter 16 x 25 x 2 MERV 8 Pleated Air Filter 12 Pack Portable Air Scrubbers FTKS18JV2S DFS CAR SF461x2 FF685x4 BNDLKIT CPP3PGSC FTKS18JV2S The manufacturer recommends you change the UV lamps every 2 years under normal operating conditions All Multi Pleat XL8 filters are 30 35% efficient by ASHRAE 52 Media Support: Diamond shaped expanded metal
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