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Please note that this product will increase the PPM (parts per million) of your nutrient solution
Operating temperature ranges between 25°C (77°F) to 30°C (86°F) above ambient
low-nitrogen formula supports strong
a jar test is highly recommended before applying this product
Bi-directional solvent input prevents channeling and ensures a full yield is achieved
12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack dupe Please note that this productNordic 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
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