8x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements The CDA-1 is the brain

The CDA-1 is the brain of the system

Sturdy 6 mil plastic

Blow molded containers are the workhorses of the nursery industry

Ducting Port Quantity: 5 (11" Double Cinching)

This 2-part blended liquid formula should be used in equal amounts during the flowering phase to stimulate the rapid onset of bud production

8x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements The CDA-1 is the brainNordic 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