15x30_5/8x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses Adjustable velcro closure

Adjustable velcro closure

Current flowing in between the electrodes causes the water to boil creating steam

Works for all Hydrofarm reflectors

Buffered soil-less grow medium

) / approximately 250 hours Auto-off after 8 minutes

15x30_5/8x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses Adjustable velcro closureNordic Pure Custom MERV 8 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