22x29x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack grow-light-bulbs NO dissolved mineral salts

NO dissolved mineral salts

Heavy duty and reusable

This symbiotic relationship between fungi and plant

Unibody die-cast construction with no welded seams

Designed to prolong bulb life and preserve light quality

22x29x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack grow-light-bulbs NO dissolved mineral saltsNordic 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