HOW TO ORDER THE RIGHT SIZE

1: Always Use a tape measure to check sizes.
2: Never go by the size on the filter frame.
3: IF your filters fit measure it, If not Measure
    the filter opening, in your grill or a/c unit.
4: When measuring your grill or a/c unit opening
    Deduct 1/4'' off each side allowing for play
5: IE: 24'' x 24'' 23.5 x 23.5
          Opening     Filter size
6: Use decimals points not fractions when ordering
7: Example: 23 1/4   23 1/2   23 3/4   23 7/8
    Decimals 23.25    23.50     23.75     23.90