Quote:
Originally Posted by Switter
I had a new carrier furnace/AC installed which has the toptech filter cabinet and honestly, it kind of torqued me off when I found out it's proprietary. Had I known that in advance I would've seriously considered a different brand. I replaced two other furnaces in previous houses and was always able to use filters from retail stores.
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Agreed but most of these cabinets from other manufacturers have the same issue. There is no size standard. The Filterbuy and some other filter brands are slightly smaller and should fit in the Toptech cabinet. I found the company FastFilter sells the Toptech filters at the same price as the Filterbuy ones on Amazon so I just got the Toptech filters.
The key with these filter cabinets is you want one that has some insulation so it doesn't sweat, one that has a solid door unlike that ridiculous hinged door on my old system that would leak air and one where the filter sits properly so you don't get air bypassing around the filter. The Toptech has all these features just a tight tolerance on its filter size.