8x12x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights We've upgraded the speed of

We've upgraded the speed of our industry-leading Model M trimmer

Keep from freezing

RootTrapperII is an attractive

then choose your preferred relative humidity (RH) setpoint with the rotary knob

Solid Start is a way to ensure that your veg cycle will be as successful as possible

8x12x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights We've upgraded the speed 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