Quick view Details General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view Details General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Details Rapitest | sku: LL01612 pH Test Kit for Soil MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Details Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view Details General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Details General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Details Rapitest | sku: LL01612 pH Test Kit for Soil MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Details Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view Details General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Details Rapitest | sku: LL01612 pH Test Kit for Soil MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Details Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view Details General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Details Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view Details General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Details General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view General Hydroponics | sku: GPC500 General Hydroponics pH Control Kit w/Up & Down | 8 oz Each General Hydroponics pH Control Kit w/Up & Down | 8 oz each General Hydroponics pH Control Kit makes pH testing easy. This package includes a GH pH Test Kit, a 8oz bottle of Liquid pH Up and a 8oz bottle of Liquid pH Down. Simply fill the... MSRP: Our Price: Sale Price: $22.98 Add to Cart Compare Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view General Hydroponics | sku: GH1515 General Hydroponics pH Test Kit for Liquid General Hydroponics pH Test Kit for Liquid 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. Use 3... MSRP: Our Price: Sale Price: $9.59 Add to Cart Compare Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Rapitest | sku: LL01612 pH Test Kit for Soil Rapitest pH Test Kits make pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one green pH test capsule and shake. Then observe the coloration of the liquid in the test indicator versus the included color chart. This... MSRP: Our Price: Sale Price: $6.95 Add to Cart Compare Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view Rapitest | sku: LL01601 Soil Test Kit for N/P/K/pH Rapitest Soil Test Kits make Nitrogen, Phosphorus, Potassium and pH testing of soil easy. Simply fill a test indicator with a little soil and water, add one test capsule and shake. Then observe the coloration of the liquid in the test indicator versus... MSRP: Our Price: Sale Price: $19.95 Add to Cart Compare Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected × OK
Quick view General Hydroponics | sku: GPTI508 General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kit | 8oz General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient/feed solution, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test... MSRP: Our Price: Sale Price: $12.95 Out of Stock Compare Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected
Quick view Bluelab | sku: BLU7001 Bluelab pH/TDS Probe Care Kit The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If... MSRP: Our Price: Sale Price: $32.95 Add to Cart Compare Compare Selected