23x25x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil nutruient This sustainable production method reduces

This sustainable production method reduces emission outputs into the environment

a natural compound helpful in disease suppression and root knot nematode control

Castings are a source of over 60 micronutrients and trace minerals

Use only in the last 7-14 days of flowering

these spectrally-enhanced halides are the best all-purpose growth and fruiting/flowering light you can use

23x25x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil nutruient This sustainable production method reducesNordic Pure Custom MERV 13 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