8_7/8x19_1/8x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack flowering The RAY44 is designed to

The RAY44 is designed to function as a complete sole-source lighting solution

Large luminous area uniform PPFD distribution

nighttime only or both

This unit is paired with a digital heat pad that adheres to the bottom of the chamber

Perfect for ornamentals

8_7/8x19_1/8x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack flowering The RAY44 is designed toNordic 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