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(Item No. COBD28725)
Digital 0.0-14.0 PH Meter Tester 0-9990ppm Digital TDS EC LCD Water Purity PPM Aquarium Filter
Ideal for all water quality testing, water purification applications, waste water regulation, aqua culture,hydroponics, laboratory and scientific testing, pools, ecology testing, colloidal silver, water treatment and more    More Details »