21_1/4x23_1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack air-purification Apply every 3-4 weeks for

Apply every 3-4 weeks for flowers

Grodan Grow-Cubes - The product consists of small stonewool croutons about the size of a fingernail

FOR SOIL WELL AMENDED WITH MINERALS AND ORGANIC MATTER Use any brand Cal/Mag as directed throughout vegetative growth and week 1 of flower

This item is sachets only

21_1/4x23_1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack air-purification Apply every 3-4 weeks forNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.