“I don't think I ever spent more than $10 for a filter, but this one does a great job. Very, very easy to install also, just align the top to the track on your Aprilaire, slide in and close. Plus with this one you only really need to change it a few times a year-so it does pay for itself.”
“I don't know how good this filter is, I change it on regular basis (3-6 months, depends on how often we use the HVAC), it shows color different as the dust piped up.”
