PH UP and DOWN Adjustment

Liquid Maintenance Solutions for Digital pH, TDS, & amp; EC Testers

pH Control & more...

Sort by: Product Price Default Earth Juice Natural pH Controller Up & Down (Dry) See details Our price: $14.95 (€ 13.01) General Hydroponics - pH Control Kit See details Our price: $17.95 (€ 15.62) General Hydroponics - pH Down (Dry) See details Our price: $10.95 (€ 9.53) General Hydroponics - pH Down Liquid See details Our price: $14.95 (€ 13.01) General Hydroponics - pH Up (Dry) See details Our price: $10.95 (€ 9.53) General Hydroponics - pH Up Liquid See details Our price: $14.95 (€ 13.01) General Hydroponics Meter Calibration Solutions See details Our price: $6.95 (€ 6.05) General Hydroponics pH Test Kit See details Our price: $7.95 (€ 6.92) Genesis pH Electrode Storage See details Our price: $8.95 (€ 7.79) Genesis Tri-Pack Calibration See details Our price: $26.95 (€ 23.45) Genesis Twin-Pack Electrode Cleaning Solutions See details Our price: $17.95 (€ 15.62) Genesis Twin-Pack pH Calibration Kit See details Our price: $17.95 (€ 15.62) Graduated Measuring Beakers See details Our price: $7.95 (€ 6.92) Oakton pH & TDS - Calibration & Buffer Solutions See details Our price: $15.95 (€ 13.88) Technaflora pH Up and Down See details Our price: $9.95 (€ 8.66) Vita Grow - Water Conditioner See details Our price: $21.95 (€ 19.10)