18x24x1 Pleated MERV 10 Air Filters 6 Pack Tents / Indoor Greenhouses Combination (full-cell) pH electrode for

Combination (full-cell) pH electrode for field applications with the HI 9815 Turtle pH transmitter

Reduces damage from ground-rot

Gives plants better resistance to pest nematodes

* Heavy-duty spill tray

The TrolMaster EC & Temperature probes provide accurate and reliable monitoring on the EC and temperature of the water being monitored by the Aqua-x

18x24x1 Pleated MERV 10 Air Filters 6 Pack Tents / Indoor Greenhouses Combination (full-cell) pH electrode forNordic Pure MERV 10 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, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies