12_3/4x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow Light Bulbs The slim form factor allows

The slim form factor allows for greenhouse deployment or high bay indoor installations

Packing: Individually packed blocks

Every Adjust-A-Wings Hellion incorporates a DE specific Super Spreader to allow for closer placement between lamp and plant canopy

The Anden AS35FP has many advanced safety and operational features:

Ducting Size: 12” | Length: 8 feet | Includes two stainless steel 12" duct clamps

12_3/4x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow Light Bulbs The slim form factor allowsNordic Pure Custom MERV 13 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