17_1/2x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack Meters & Solutions Reduces your grow room temperature

Reduces your grow room temperature

so you can see if it's dried up

- Two separate electrical outlets for temperature and humidity control equipment

On the backside are ports to connect and control additional fans

Purpinator will also regulate the pH of the cell sap in plant vacuoles

17_1/2x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack Meters & Solutions Reduces your grow room temperatureNordic Pure Trane Replacement 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