Includes T5 tube with reflector
The instrument is only as accurate as the probe is clean
The “Best Choice” for a liquid pH adjuster
Continual use of these bloom additives will ensure your plants will stay on the right course
15x30_5/8x1 MERV 13 AC Furnace Filters 6 Pack Hydro Components Includes T5 tube with reflectorNordic 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