13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack co2 Optimized full spectrum outputs 1800

Optimized full spectrum outputs 1800 µmol/s (PPF 400-700nm)

you just plant the seed balls into the mat's various labeled planting sites and press them into their respective spots

Natural barley malt extract provides supplemental carbohydrates that give plants a needed energy boost just before harvest

Apply weekly during propagation

13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack co2 Optimized full spectrum outputs 1800Nordic Pure Custom MERV 14 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition