Just started using the 5 on a 1 platform . Love the concept seems to have great airflow and no issue with static pressure so far but only a week into testing the timeframe to see if i get the 6 months out of it as recommended will follow up
Plus:Great shipping.Well made.Minus:Tight fit, had to really push hard to get it in. Yes I got the correct size.No pull out tab. The old filter had a cut in the card board you could use to pull it out of the filter house.
I use said filters only in the winter, I use mobile AC in the summer to cool the various rooms being used to help cut down on cost etc. The furnace on the otherhand serves the entire home and thus the need for large filters. Filterbuy is always there, maybe too much sometimes via emails.....but hey, it works!