18x27x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Paleo Bloom & Grow Big and three

& Grow Big and three 6-Ounce solubles: Open Sesame

including shelving can be used to protect your seeds and seedlings

The PAR sensor can be incorporated into the Hydro-X Plus system to provide a measurement of “PAR” ( Photosynthetically Active Radiation )

Tundra should typically be applied as a root drench beginning at the flowering (reproductive) stage of plant growth

18x27x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Paleo Bloom & Grow Big and threeNordic 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