General Hydroponics General Hydroponics 6 Gallon Container Spigot $1.95 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 RapidStart 500 ml $98.82 $95.94 Choose Options 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
General Hydroponics General Hydroponics pH Down Liquid Gallon $32.53 $31.58 Choose Options Compare Quick view
General Hydroponics General Hydroponics pH Control Kit $20.85 $20.24 Choose Options Compare Quick view
General Hydroponics General Hydroponics General Organics CaMg+ 2.5 Gallon $160.70 $156.02 Choose Options Compare Quick view
General Hydroponics General Hydroponics General Organics CaMg+ 1 Quart $22.43 $21.78 Choose Options Compare Quick view
General Hydroponics General Hydroponics General Organics BioThrive Grow 2.5 Gallon $167.37 Choose Options Compare Quick view
