Active Aqua air stones are an ideal way to add oxygen to your hydroponic growing system
These solids include sucrose
high salinity
Take back control of your growing space without harsh synthetic chemicals
Input Voltage: 120V - 240VAC
18x24x2 Pleated MERV 13 Air Filters 12 Pack grow-light-ballasts Active Aqua air stones areNordic 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