Hello. I am looking to purchase and install the Honeywell F300 air cleaner for my home and need assistance which size I should purchase.
The F300E1001 is 16x20 and is rated at 1200CFM with opening of 14-7/16 x 18-1/4
The F300E1035 is 20x25 and is rated at 2000CFM with opening of 18-7/16 x 23-1/4
My air conditioner is either a 3 or 3.5 ton. Not sure what other variables are needed to choose the correct sized unit. Not that this matters, but the cutout on the side of my furnace is 14-7/8 x 23-3/4.
Thank you for the assistance!