I checked the filter, it doesn't look like the picture. There is no indication that it is Merv 12. I have another Merv 12 from a different brand, the pleats are tighter. I went to my local hardware store and this model has more folds than the Merv 12 they sell. I called the 800 number on the box and the company said that in mass production some of their stock Merv 12's don't print on the side of the filter and asked why it had fewer wrinkles than the ones in the store. They said they make certain models for sale in the store but from the same materials used for all models. I'll have to see how it compares to my Merv 11 before I can judge fairly. I hope everything works out. I bought it on sale and at a great price. The product looks comparable just not as many wrinkles as other Merv 12 models. I will update after 45 days of use. The price is very good. The product has improved features that I wanted but couldn't afford, now I can.
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