NU Aqua 4.5" x 20" Whole House Granular Activated Carbon Filter - 5 Micron GAC Replacement EC calibration solution 1413 compost the mineral media and

compost the mineral media and place the plastic housing in your curbside recycling bin

Hydroponics: Optimize nutrient solution chemistry for maximum plant growth and health in hydroponic and aquaponic systems

or verifying RO/filter output

Measures Electrical Conductivity (EC)

NU Aqua 4.5" x 20" Whole House Granular Activated Carbon Filter - 5 Micron GAC Replacement EC calibration solution 1413 compost the mineral media andDeliver clean, chlorine free water throughout your entire home with the NU Aqua 4. 5" x 20" Whole House Granular Activated Carbon (GAC) Filter. Engineered with advanced HydraCoil technology, this premium 5 micron replacement filter provides superior chlorine removal and contaminant reduction for whole home water filtration systems. Advanced HydraCoil Technology Unlike standard carbon filters, this NU Aqua GAC filter is manufactured using proprietary