25x28x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack commercial-greenhouse-fixtures Fairy Ring

Fairy Ring

Oneness is the perfect solution for the beginning gardener

This broad spectrum allows the plant to absorb more usable light

integrated production and world-class R&D

25x28x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack commercial-greenhouse-fixtures Fairy RingNordic 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