8x8x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Duramax 200 is a cost-effective

Duramax 200 is a cost-effective and manageable solution for greenhouse growing that will last for years to come

The PARsource Commercial Magnetic Ballast is the premium magnetic ballast in the PARsource line

Volts: 120 V

Another huge benefit is that we created Calyx Magnum without the use of chemical chelates like EDTA

8x8x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Duramax 200 is a cost-effectiveNordic Pure Custom MERV 8 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