21x23_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack jg Preferred Food: Two-spotted spider mites

Preferred Food: Two-spotted spider mites and many other mite species

the RAZR family tackles a wide range of vertical farming applications with average PPFD ranging from 125-375 µmol/m2/s

molds and mildew (including powdery mildew)

another General Hydroponics product for pest control

Class A Fire-Rated

21x23_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack jg Preferred Food: Two-spotted spider mitesNordic Pure Custom MERV 7 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