17_1/2x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Led Flowering Cycle: Assists with nutrient

Flowering Cycle: Assists with nutrient uptake

93% efficient reflector design

No rinse or wipe down is required

This distinction means each unit is covered by a 5 year full manufacturer’s warranty

LumiGrow Pro 650 Horticultural Light

17_1/2x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Led Flowering Cycle: Assists with nutrientNordic Pure Custom 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 condition