22x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack ac-/-dehumidification-/-humidification Most growers report visible improvements

Most growers report visible improvements in plant vigor and flower development within the first 1–2 weeks of the bloom phase when following the full 4-part feed program

- Measurements: 22''x19''x7

This avoids hard starts and power surges

Unload Station Plus (Standard/Reefer Size)

Original Maxicrop Liquid Seaweed is derived from pristine Norwegian seaweed

22x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack ac-/-dehumidification-/-humidification Most growers report visible improvementsNordic Pure Custom MERV 12 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