12_1/8x15x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow Light Ballasts Both aluminum flange openings also

Both aluminum flange openings also assist in absorbing sound waves from vibrations

RAZRx is 162 percent more energy efficient than today’s standard propagation lighting system

perennials and ornamental plants during the vegetative and flowering phase to stimulate growing and blooming

Not tall enough for you

This automatically maintains the ideal nutrient level in all the interconnected units

12_1/8x15x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow Light Ballasts Both aluminum flange openings alsoNordic Pure Custom MERV 12 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 condition