Pay in 4 interest-free payments of $48.75 Learn more
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
The TrolMaster pH probes provide accurate and reliable monitoring on the pH of the water being monitored by the Aqua-x
For growers concerned about what’s going on in their garden
30-day warranty
Humboldt Nutrients offers the ease of a one-part Ca-Mg additive with the quality which has come to be associated with our products
swivel brackets
16x24x2 Pleated MERV 13 Air Filters 12 Pack Led The TrolMaster pH probes provideNordic 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
