General Hydroponics General Hydroponics 6 Gallon Container Spigot $1.95 $1.76 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH 7.01 Calibration Solution 8 oz $9.03 We are currently out of stock. Compare Quick view
General Hydroponics General Hydroponics pH 7.01 Calibration Solution Quart $22.69 $20.42 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH 4.01 Calibration Solution 8 oz $9.03 We are currently out of stock. Compare Quick view
General Hydroponics General Hydroponics RapidStart 500 ml $103.76 $93.38 Choose Options Compare Quick view
General Hydroponics General Hydroponics RapidStart 275 ml $55.84 $50.26 We are currently out of stock. Compare Quick view
General Hydroponics General Hydroponics RapidStart 1 Liter $200.50 $180.45 We are currently out of stock. Compare Quick view
General Hydroponics General Hydroponics RapidStart Gallon $655.33 $636.24 We are currently out of stock. Compare Quick view
General Hydroponics General Hydroponics pH Up Liquid Quart $13.70 $12.33 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Up Liquid Gallon $34.16 $30.74 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Test Kit 1 oz $9.59 $8.63 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Down Liquid Quart $13.70 $12.33 Choose Options Compare Quick view
