15x30_5/8x1 MERV 7 AC Furnace Filters 6 Pack environmental-controllers favored by thousands of horticulturists

favored by thousands of horticulturists from weekend gardeners to professional flower trimmers—with the added enhancement of titanium-coated blades

Great for hydropinic or soil irrigation systems

This Elite 144 comes with our recommended vented humidity dome which helps with root growth and development

Never damage a plant again trying to spray those back corners

The GMC's remote combination probe features a highly accurate dual beam CO2 sensor

15x30_5/8x1 MERV 7 AC Furnace Filters 6 Pack environmental-controllers favored by thousands of horticulturistsNordic 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