25x28x1 MERV 8 AC Furnace Filters 6 Pack spl_allstate Most growers have their own

Most growers have their own requirements

instead of grabbing several in a bulk pack

and starter sheets is by far the best on the market with superb air to water ratio and a fibre structure that holds water longer and has less resistance for the roots to grow in

Lubricant Free

25x28x1 MERV 8 AC Furnace Filters 6 Pack spl_allstate Most growers have their ownNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters