15x25x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo Portable PAR meter with highly

Portable PAR meter with highly accurate remote quantum sensor

and patented lamp depreciation control

Designed exclusively for Hydrofarm by America's foremost lighting design engineers

Is this unit compatible with environmental controllers

15x25x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo Portable PAR meter with highlyNordic 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