21_1/2x23_3/8x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack LUXX 200W BAR 208-277V unlike other hazardous pH lowering

unlike other hazardous pH lowering agents

An eight outlet manifold that delivers water and nutrients to your plants at the pressure of your choice

biodegradable solution that works on contact and lets you replant within hours

causing them to cluster together and either fall out of the air or be captured by filters — effectively neutralizing them without chemicals or ozone

1 pallet = 106 pots

21_1/2x23_3/8x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack LUXX 200W BAR 208-277V unlike other hazardous pH loweringNordic Pure Custom MERV 13 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