23x25x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil nutruient • 3 spare brass plugs

• 3 spare brass plugs to decrease CO2 production

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

Castings are a source of over 60 micronutrients and trace minerals

Available in 3

This sustainable production method reduces emission outputs into the environment

23x25x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil nutruient • 3 spare brass plugsNordic 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