17_1/2x17_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer First umbrella-type reflectorCompatible with HPS

First umbrella-type reflectorCompatible with HPS and CFL lamps (600W max)Security with thermal protection+40% light efficiency compared to standard reflectors (1800 µmol/m²/s)Can be set closer to plants without over heatingVoltage 400VPower 600W

stable running

and a data logger which shows the minimum and maximum pH recorded

sweeteners

it takes about 10 minutes with our 11 Watt unit

17_1/2x17_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer First umbrella-type reflectorCompatible with HPSNordic 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