![Just got an HVAC installed and have never seen a filter like this. The guys at installation didn't explain it either. What should I know? Never seen one like it. : r/hvacadvice Just got an HVAC installed and have never seen a filter like this. The guys at installation didn't explain it either. What should I know? Never seen one like it. : r/hvacadvice](https://preview.redd.it/xita126tzdp81.jpg?width=640&crop=smart&auto=webp&s=5a840616c936cbc3ddba6bc5edfd97861f53c5e3)
Just got an HVAC installed and have never seen a filter like this. The guys at installation didn't explain it either. What should I know? Never seen one like it. : r/hvacadvice
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Trion Air Bear 20 x 25 x 5 Inch MERV 13 High Performance Air Purifier Filter Replacement for Air Cleaner Purification Systems, White (3 Pack) - Amazon.com
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Amazon.com: 2 PACK Air Filter Factory 10-3/8 X 11-3/8 X 3/8 Range Hood Aluminum Grease Filters : Home & Kitchen
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