15x30_5/8x1 MERV 7 AC Furnace Filters 6 Pack bio soil Master B – 32oz

Master B – 32oz

It has two 4" ports to facilitate installment to ventilation systems

Testing for phytotoxicity and compatibility is recommended before widespread use on plants or mixing with other products

SUNMASTER lamps are sure to consistently provide new levels of quality and productivity

For hydroponic use:

15x30_5/8x1 MERV 7 AC Furnace Filters 6 Pack bio soil Master B – 32ozNordic 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