21x23_1/2x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack microbes sanitize the injection port surface

sanitize the injection port surface

SNS 203's concentrated active ingredients attack fungus & algae and cause pests to dehydrate and dry up

Its compact power supply and linear design reduces shadows on plants in grow spaces with a lot of natural sunlight

Irrigation Injector (1:100 ratio): Mix 10–18 fl

Powdery Mildew / Downey Mildew ________________________________

21x23_1/2x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack microbes sanitize the injection port surfaceNordic Pure Custom MERV 10 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