15x30_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Terp Derp This interlacing allows for deeper

This interlacing allows for deeper light penetration and a 800 umol min/1000 umol Max light comverage throughout the conopy area

The simple construction

54 watt day or warm spectrum*

They do not enter diapause when temperatures cool so they are efficient in areas where temperatures drop below 60°F

CS53506 Lamp cord required

15x30_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Terp Derp This interlacing allows for deeperNordic 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