Bluelab pH Pen AIR FILTER BOXES Nordic Pure 12x24x1 MERV 10

Nordic Pure 12x24x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Lasts approximately 10 years in sunlight and indefinitely in the shade

The 120mm fan holds an IP-55 rating for exceptional resistance to liquids and dust

and retailers worldwide

Bluelab pH Pen AIR FILTER BOXES Nordic Pure 12x24x1 MERV 10Bluelab pH Pen: Essential pH & Temperature Monitoring for Optimal Plant Growth Ensure your plants thrive with the Bluelab pH Pen! This compact and robust handheld meter provides accurate and reliable pH and temperature readings, essential for maintaining optimal nutrient uptake and maximizing yields. Why pH and Temperature Matter: pH: A crucial factor in nutrient availability. Plants can only absorb nutrients within a specific pH range. Regular pH