26x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Grow Strong Measures 22"L x 20"W x

Measures 22"L x 20"W x 9"H

Quantity of LEDs - 2646 pcs BridgeLux chips

How to use Top·Max™

T’s ideal consistency gives them room to breathe and for roots to grow freely

Growers get the most use out of this style of bulb towards the end of the vegetative stage

26x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Grow Strong Measures 22"L x 20"W xNordic 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