General Hydroponics General Hydroponics 6 Gallon Container Spigot $1.95 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH 7.01 Calibration Solution 8 oz $9.03 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH 7.01 Calibration Solution Quart $25.75 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH 4.01 Calibration Solution 8 oz $9.03 Choose Options Compare Quick view
General Hydroponics General Hydroponics RapidStart 500 ml $98.82 $95.94 Choose Options Compare Quick view
General Hydroponics General Hydroponics RapidStart 275 ml $53.18 $51.63 Choose Options Compare Quick view
General Hydroponics General Hydroponics RapidStart 1 Liter $190.95 $185.39 Choose Options 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 $13.05 $12.67 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Up Liquid Gallon $32.53 $31.58 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Test Kit 1 oz $9.13 $8.86 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Down Liquid Quart $13.05 $12.67 Choose Options Compare Quick view
