16_1/2x21_5/8x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack LED Lighting - Pre-mounted double ended sockets

- Pre-mounted double ended sockets included

It's safe and effective right up to harvest on vegetables

One of the most important elements a plant needs to grow is oxygen at the root zone

PsyCloner is a great solution for both professional cloner’s and beginners as well

16_1/2x21_5/8x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack LED Lighting - Pre-mounted double ended socketsNordic 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