12.5x21x0.75 Exact Size Air Filter growing-accessories soil and semi-solid samples

soil and semi-solid samples

We believe the most effective solutions can also be the most safe

The number of units and the size of the ionization tubes are dependent upon the airflow in the system and the severity of the pollution problem

1/2 tbsp increments from 1/2 - 2 tbsp

Refer to the label for dosage recommendations

12.5x21x0.75 Exact Size Air Filter growing-accessories soil and semi-solid samplesNordic Pure Custom MERV 10 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