Because the exact measurements of this filter are slightly smaller, the filter does not fit as tightly as other filters used previously. I am, however, trying it to see if it will do the job.
They seem to be good filters, although very expensive. Theres got to be a cheaper alternative. Date box on filter is upside down. Does that mean the airflow arrow could be backwards too? That makes the filter placement very confusing. I dont know if I can trust this filter or company.
I think the filter will be effective. The only issue I saw was the quality of the manufacturing. Some of the panel pleats were not uniformly configured, and I couldn't reposition them without damaging the unit. Some of the pleats were right next to each other, so I assume the sides that were against each other would not be as effective at filtering as they should be. It's just my non-expert opinion of what I would expect in a performance issue with these "problems". Regardless, I still think the filter will do its job because most of the filter looked like I expected...uniformly configured. I think it will be a good filter for the price.