22x29x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal helping to prevent contaminants from

helping to prevent contaminants from entering through exposed seams

while giving more cubic volume for plants

Allow for 10 – 25% runoff for best results

They emerge as early as bloom

(OPTIMAL- Use a plant propagation kit with a clear humidity dome

22x29x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal helping to prevent contaminants fromNordic 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