The 203369 is a prefilter for the F50 and F300 Honeywell Electronic Air Cleaners.  It fits the 20 x 25 and 20 x 12 1/2 models, has no spring clips and must be ordered in multiples of 2 each.  One filter is required for the 20 x 12 1/2 air cleaner and 2pcs are required for the 20 x 25 air cleaner. 

• Description:           Prefilter for F50 and F300
• Application:            Replacement Accessory Part
• Used With:              F50F and F300A and F300E
• Included:                 No Spring Clips
• Size:                          Each Filter is 20 x 12 1/2 in size.

Must be ordered in multiples of 2  - These filters are not designed for the earlier F50A and F50E air cleaners.

This item must be ordered in multiples of 2, eg. 2,4,6,8,10, etc