21x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack hawthorne 5 and 6-inch thick filters

5 and 6-inch thick filters could last up to 6 months

Bottom diameter: 22 1/4"

and flat screw heads

BPA-free and UV resistant

SuperCloset 12-Site Bubble Flow Buckets-Best Hydroponic Bucket System grow the biggest and best yields of any bubble buckets system on the market by combining DWC and Constant Current technology into one fully automated

21x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack hawthorne 5 and 6-inch thick filtersNordic Pure Trane Replacement MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air