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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
flexible installation options
Combining precise
This system is certified by AHRI under certificate number 214859383
Internal thermal insulation to reduce noise
Clean Comfort MERV 11 Pleated Air Filter 20X20X4.5 (5pk) 4 Burners flexible installation optionsThis is a package of 5 filters. These filters function at MERV 11 and are ~4. 5 in thick. Most filters labeled 4. 5 in thick are actually ~4. 375 in thick, this is normal. For this thickness of filter we recommend changing your filter every 6 9 months for maximum air flow, best filtration, and least wear and tear on your system. Something to note is that human lungs filter air at approximately MERV 8 equivilant. Using filters above MERV 8 helps to
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