23_1/4x29_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack botanicare Extra-big chunks of perlite provide

Extra-big chunks of perlite provide the best drainage for superior root aeration

96 x Drip Shield 2

Monitor and adjust the relative humidity of your indoor growth environment with the Anden A77 Digital Dehumidifier Control

and an alarm to start the fans if temperatures reach a high threshold

HANNA's exclusive cartridge pH and ORP electrode

23_1/4x29_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack botanicare Extra-big chunks of perlite provideNordic 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