14x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil The main Chamber holds up

The main Chamber holds up to 1/3 full (approx 2 lbs

The pH controller includes a chemically resistant low voltage dosing pump plus both pH and temperature sensors

125G / 470L tank capacity

Ideal for Poor Soils and Hydroponics: Perfect for depleted or rocky soils

14x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil The main Chamber holds upNordic 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