17_1/8x34_7/8x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Ventilation/Air Conditioning Effective Area: Up to 430

Effective Area: Up to 430 sq ft at 10' ceiling height or 4300 cu ft

Magnum with Vitamin B1 is a potent magnesium supplement for preventing or treating the magnesium deficiency that often appears during bloom

Developed for extreme quality water

000 Watt Metal Halide Conversion Lamp S52 96

Power Plant is environmentally friendly

17_1/8x34_7/8x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Ventilation/Air Conditioning Effective Area: Up to 430Nordic 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