13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Aeromixer Synthetic Pro Edition Works perfectly with our 10"

Works perfectly with our 10" x 20" web trays

The PotPro™ 3 Gallon Bucket is the newest member of the revolutionary PotPro™ line

In established gardens broadcast evenly around the foliage canopy

Grow Big - The Right Juice for the Right Use

Replaceable double junction pH probe included

13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Aeromixer Synthetic Pro Edition Works perfectly with our 10"Nordic 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