18x18x1 Pleated MERV 7 Air Filters 12 Pack spl_dlw The Master A&B series stands

The Master A&B series stands apart from your standard base nutrient line by making macro and micro nutrients more available to your plant

Sachets are sold in boxes of 25 pieces

Regular Use: Use a dilute mixture of 2-5 mL per gallon water for regular maintenance

These blocks have an excellent water absorption and (re)saturation rate and feature the exclusive Plant Comfort fibre structure which has a lower density of resistance during rooting with no loss of firmness

Mosquitoes are not just annoying

18x18x1 Pleated MERV 7 Air Filters 12 Pack spl_dlw The Master A&B series standsNordic 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