Flat Filters

We offer flat filters and prefilters separately in 3-ft x 3-ft sheets. We also offer complete sets of flat filters which we precut to fit your Smoky Lake Filter Tray perfectly. Our Flat Filter Sets are packaged with love and arrive at your doorstep ready to go.

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  • Flat Filter Set

    Precut Flat Filter Sets

  • Synthetic Flat Filter - 3' x 3'

    Main Flat Filter, 36″ x 36″ Sheet

  • Reemay Prefilter Cloth

    Flat Prefilters, 36″ x 36″ Sheets, Pkg of 4