18x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack lighting_accessories Our careful balanced mineral ratios

Our careful balanced mineral ratios help facilitate optimal plant development including photosynthesis

so you can use this regularly with no worry and great efficacy and include it in a Resistance Management program

Use High Altitude model at 4500 ft elevation or above

sponge mop or chemical spray device or by immersion so as to thoroughly wet all surfaces

Speed up the flowering and fruiting stage

18x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack lighting_accessories Our careful balanced mineral ratiosNordic Pure 18x24x4 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material while