25x30x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Liquid & Weight Measuring and 3′ x 6′ trays

and 3′ x 6′ trays for the 4′ x 8′ tent

NOTE: This cover will only fit the newest style Radiant 6" fixtures

Includes replaceable 9 volt battery and calibration solution

Drop Air is best suited for commercial and industrial applications and is highly recommended for use in greenhouses

25x30x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Liquid & Weight Measuring and 3′ x 6′ traysNordic 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