General Hydroponics pH Control Kit Online Only: $19.99 Quick view Add to Cart Add to Wish List Add to Compare
General Hydroponics pH Down 1 Quart $11.99 Online Only: $9.99 Quick view Add to Cart Add to Wish List Add to Compare
General Hydroponics pH Test Indicator 8 oz $12.99 Online Only: $9.99 Quick view Add to Cart Add to Wish List Add to Compare
General Hydroponics pH Test Kit $8.99 Online Only: $6.99 Quick view Out of stock Add to Wish List Add to Compare
General Hydroponics pH Up 1 Quart $11.99 Online Only: $9.99 Quick view Add to Cart Add to Wish List Add to Compare
GH Rapid Rooter 50/Pack Replacement Plugs Online Only: $21.99 Quick view Add to Cart Add to Wish List Add to Compare
pH Calibration 4.01 Solution 8 oz $9.99 Online Only: $8.99 Quick view Add to Cart Add to Wish List Add to Compare
pH Calibration 7.0 Solution 8 oz $9.99 Online Only: $8.99 Quick view Add to Cart Add to Wish List Add to Compare
TDS Calibration Solution 1500 ppm 8 oz $9.99 Online Only: $7.99 Quick view Add to Cart Add to Wish List Add to Compare
