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General Hydroponics pH Control Kit

General Hydroponics pH Down Liquid Fertilizer, 1-Quart

AcuRite 00613 Humidity Monitor with Indoor Thermometer, Digital Hygrometer and Humidity Gauge Indicator

General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer set, 1 Quart (Pack of 3)

Professional TDS ppm Meter | Digital Test Pen Combines EC, TDS & Temp (3-in-1) | 0-9999 ppm & ± 2% Accuracy | Quick and Easy Testing For Hydroponics, Ro System, Pool, Aquarium, Spa and Water Hardness

General Hydroponics pH Up Liquid Fertilizer, 1-Quart

General Hydroponics CALiMAGic Quart

15-pack pH Meter Buffer Solution Powder For Precise and Easy PH Calibration, PH Calibration Powder Solution 6.86,4.01,9.18

Fox Farm Liquid Nutrient Trio Soil Formula - Big Bloom, Grow Big, Tiger Bloom Pint Size (Pack of 3)