20_1/2x25_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack plant-support Features PWM-controlled stator blade fans

Features PWM-controlled stator blade fans that are designed for high static pressure applications such as ducting

Power (Watts) - 180W

- Pyrex glass tube

use in conjunction with the SUPERthrive nutrient family of products

that is easy to clean and engineered for multiple operations

20_1/2x25_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack plant-support Features PWM-controlled stator blade fansNordic Pure Custom MERV 13 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