Quick view Details sku: HGC732903 Bluelab 4.0 20ml Cal Sol (EACH) MSRP: Now: $2.70 Add to Cart Compare Quick view Details General Hydroponics | sku: 722145 GH pH Test Kit 1 oz MSRP: Now: $8.20 Add to Cart Compare Quick view sku: HGC732903 Bluelab 4.0 20ml Cal Sol (EACH) Bluelab 4.0 20 ML Calibration Solution MSRP: Now: $2.70 Add to Cart Compare Quick view General Hydroponics | sku: 722145 GH pH Test Kit 1 oz General Hydroponics® pH Test Kit General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced... MSRP: Now: $8.20 Add to Cart Compare Compare Selected × OK
Quick view Details General Hydroponics | sku: 722145 GH pH Test Kit 1 oz MSRP: Now: $8.20 Add to Cart Compare Quick view sku: HGC732903 Bluelab 4.0 20ml Cal Sol (EACH) Bluelab 4.0 20 ML Calibration Solution MSRP: Now: $2.70 Add to Cart Compare Quick view General Hydroponics | sku: 722145 GH pH Test Kit 1 oz General Hydroponics® pH Test Kit General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced... MSRP: Now: $8.20 Add to Cart Compare Compare Selected × OK
Quick view sku: HGC732903 Bluelab 4.0 20ml Cal Sol (EACH) Bluelab 4.0 20 ML Calibration Solution MSRP: Now: $2.70 Add to Cart Compare Quick view General Hydroponics | sku: 722145 GH pH Test Kit 1 oz General Hydroponics® pH Test Kit General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced... MSRP: Now: $8.20 Add to Cart Compare Compare Selected
Quick view General Hydroponics | sku: 722145 GH pH Test Kit 1 oz General Hydroponics® pH Test Kit General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced... MSRP: Now: $8.20 Add to Cart Compare Compare Selected