This optional valve (used in place of a pump) is designed to be installed in a pressurized water line and to be controlled by your CO2 monitor
Perfect for a 3' x 3' growing area at 24”
15' Remote probe with highly accurate sensor
a Y-splitter and a special 4 ft RJ12 / 3
Made in EU
10x10x1 Pleated MERV 13 Air Filters 6 Pack pumps-and-irrigation-supplies This optional valve (used inNordic 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