17_1/8x26_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Each air filter box is

Each air filter box is built using 1mm thick cold-rolled steel and finished with matte black powder coating

• Replaces up to 15 human workers

5-inch telescopic

Hydrofarm's T5 replacement tubes offer HO light at a great price

The Grow1 ULV Electric Atomizer utilizes a high-power motor and superior design to bring high efficiency in uniform droplet size

17_1/8x26_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Each air filter box isNordic 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