16x21_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks Choose EYE HORTILUX lamps to

Choose EYE HORTILUX lamps to raise your lighting system to a new level of performance and optimize spectral energy levels to promote vigorous plant growth

This all equates to BETTER QUALITY YIELDS

Included in the box:

CE certified

no particulates or sediment

16x21_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks Choose EYE HORTILUX lamps toNordic Pure Custom MERV 13 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