Quote:
Originally Posted by retiredguy123
I use the Filterbuy MERV 11 filters from Amazon. They are 4 inches thick, and I change them every 6 months. They cost less than $40. You will not void the warranty. I found that using MERV 11 instead of MERV 8 makes the house quieter and less dusty. Buying filters from Carrier is a ripoff.
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Another fan of Filterbuy here ! After using filters from the big box stores, etc. we found this fantastic Alabama company near Talladega. We order direct from them, not Amazon, and their customer service and speed (get ours the 2nd day after we order) are over expectations. All USA made, super customer service, exceptional quality and the prices are the best we ever found.