13x24x1 Exact MERV 7 AC Furnace Filters 6 Pack hydro-x EC or TDS levels rise

EC or TDS levels rise either above or Below (user selected) that set-point

Tropicoco Moisture Retaining is a premium potting mix made from coconut coir and perlite

AZOS Red Liquid can also be used to catalyze root growth for cloning and plant propagation at a rate of 20 ml per gallon for rockwool cube and plug soaking

Gavita EL1/EL2 controllers

1 Unit Left for immediate ship

13x24x1 Exact MERV 7 AC Furnace Filters 6 Pack hydro-x EC or TDS levels riseNordic 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