18x24x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack Liquid & Weight Measuring Weight: 11lbs / 5kg

Weight: 11lbs / 5kg

This blue SMS lab coat protects against dust

Platinium HydroStone can be utilized for growing in both rockwool cubes and square pots

Can be used safely within a week until harvest

Packaging Dimensions - 17

18x24x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack Liquid & Weight Measuring Weight: 11lbs / 5kgNordic Pure 18x24x4 Pleated Air Filters MERV 15 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, smoke particles, smog, allergens, virus carriers, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured