30x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack HPS With the Bluelab Guardian Monitor

With the Bluelab Guardian Monitor monitoring your crops 24 hours a day and with the ability to set high and low alarms

It conveniently snaps to your existing tent poles and helps maximize you space by removing floor items from your growing area

bring samples and standards to

Podosphaera fusca

This ionization equipment is effective in reducing harmful pollutants and odors by introducing positive and negative ions into the system airflow

30x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack HPS With the Bluelab Guardian MonitorNordic Pure Custom MERV 7 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