21_1/2x23_3/8x1 Exact MERV 7 AC Furnace Filters 6 Pack Grow Light Bulbs 5' x 5' wide and

5' x 5' wide and uniform coverage

for soil and hydroponics

5 in size fits perfectly into rockwool holes

Five bright green LED lights won't interrupt plants' natural cycle and the cap's white brim contrast stitching helps you stand out during the daytime

21_1/2x23_3/8x1 Exact MERV 7 AC Furnace Filters 6 Pack Grow Light Bulbs 5' x 5' wide 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