16x21_1/2x1 Exact MERV 13 AC Furnace Filters 6 Pack Liquid & Weight Measuring Females lay up to 500

Females lay up to 500 eggs during their lifespan

control function(s)

Use in soil or hydroponic applications

• Designed exclusively for Hydrofarm by America's foremost lighting design engineers

GreenCure fungicide is recommended for use on over 150 different flowers

16x21_1/2x1 Exact MERV 13 AC Furnace Filters 6 Pack Liquid & Weight Measuring Females lay up to 500Nordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200