17x26x1 Exact MERV 8 AC Furnace Filters 6 Pack environmental Bloom: 14 ml/gallon

Bloom: 14 ml/gallon

The rockwool will last for the life of your plant

and these air pockets contain oxygen

Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums

• Supplied with factory prewired 120V 8' power cord

17x26x1 Exact MERV 8 AC Furnace Filters 6 Pack environmental Bloom: 14 ml/gallonNordic 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