7_3/4x25_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation The band is made of

The band is made of food-grade nylon

Spray directly on plants during the evening or when lights are off

1 ML per gallon will treat 3

These bacterial can live in both aerobic and anaerobic environments

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7_3/4x25_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation The band is made ofNordic 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