You probably have this in other reviews seen, but the actual size you will receive is a little smaller than what you buy. For example, I bought a pack of 14 x 14 and 18 x 18 but the sizes were 13.5 x 13.5 and 17.25 x 17.25. I wish they were more sincere about this. However, they are PERFECT for my HVAC system. I don't know how other houses are set up, but our house (the place you put these filters in) has bolts and screws inside, so I had to put in filters that were "real". the size. Old and large filters used to take about 5 minutes to install, but these just show up. The actual quality itself is excellent. It has a MERV rating of 8 (more than sufficient for most households) and is of better quality than comparable filters you will find in other department stores. We actually installed a new HVAC system and I asked the techs about it and they said they are great and don't pay too much for other brands (unless you REALLY need a higher allergy rating or another specialized pet filter). All in all very recommendable. I will definitely buy this brand from now on.
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