21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases The large area of light

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

Buffer recognition: 4

8 oz HPK and 1

Features a built-in battery backup

Puts Control at Your Fingertips

21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases The large area of lightNordic 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