16x21_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack Lighting Formulated for aggressive growth and

Formulated for aggressive growth and superior blooms

VISIBILITY – The plastic in these domes is clear and allows you to easily observe the plants—ideal for cuttings as well as seedlings

- Always female seeds

Female adult parasitic wasps parasitize the aphid

A high airflow dual fan kit to enable you to control the ventilation and air circulation for a wide range of DIY projects

16x21_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack Lighting Formulated for aggressive growth andNordic Pure MERV 7 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 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters