21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases 8 oz HPK and 1

8 oz HPK and 1

High effciency top-bin Samsung LM301H 3000K & 5000K

The large area of light dispersal coupled with the intense light is what makes Quantum's T5 optimal for your garden's growth

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21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases 8 oz HPK and 1Nordic Pure Trane Replacement MERV 7 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