8x8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Once diluted in water

Once diluted in water

These field tests were conducted to verify the most effective spectrum for the vegetative stage of plant growth

Test pH every few drops until the desired pH level is reached

We have lighting designers who can give you tailored advice for your environment and desired yields and we have the lowest failure rate in the industry

8x8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Once diluted in waterNordic Pure Custom MERV 14 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