top of page
Store / maintenance
General Hydroponics Standard Reference Solution 1500 ppm 8 fluid ounce 250 milliliter 1/ each

General Hydroponics Standard Reference Solution 1500 ppm 8 fluid ounce 250 milliliter 1/ each

SKU 203421
10.40
﹟fave
SRP⠀ 13.42 − 3.02
Bulk pricing available for quantities of 6 units or more
✅ price beat guarantee
1
Buy more, save more
Quantity Price per item Discount
6 items 6.97 33% off
12 items 6.13 41% off
Save this product for later
Share this product with your friends
Pin it
General Hydroponics Standard Reference Solution 1500 ppm 8 fluid ounce 250 milliliter 1/ each
Product Details
UPC: 793094015714
Brand: General Hydroponics
Available stock: 28+

price per unit: liter & gallon

item *bulk qty
203421  *6/ pack *12/ case
🔆
43

.96

166

.40
💧
29

.45

111

.49
🍅
25

.92

98

.11

🌱
General Hydroponics PPM calibration solution is made with the highest quality electronic meter reference solutions in mind. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics check each batch to ensure that our solutions are exactly calibrated each time they are used. Add this solution to your grow room supplies today!
Show More
You May Also Like
Nutrilife H2O2 Hydrogen Peroxide 29%, size: 1 gallon 4 liter 4/ case
Nutrilife H2O2 Hydrogen Peroxide 29%
Nutrilife H2O2 Hydrogen Peroxide 29%
SKU 243111243111
SRP⠀ 230.76
− 32.50
198.26
﹟fave
Monterey Take Down Garden Spray Concentrate, size: 1 pint 500 milliliter 6/ case
Monterey Take Down Garden Spray Concentrate
Monterey Take Down Garden Spray Concentrate
SKU 207151207151
SRP⠀ 191.62
− 31.50
160.12
﹟organic﹟fave
Monterey Garden Insect Spray with Spinosad, size: 1 pint 500 milliliter 12/ case
Monterey Garden Insect Spray with Spinosad
Monterey Garden Insect Spray with Spinosad
SKU 206761206761
SRP⠀ 424.75
− 65.50
359.25
Physan 20 Bactericide Disinfectant Fungicide Virucide Algaecide Solution, size: 1 pint 500 milliliter 1/ each
Physan 20 Bactericide Disinfectant Fungicide Virucide Algaecide Solution
Physan 20 Bactericide Disinfectant Fungicide Virucide Algaecide Solution
SKU 219211219211
SRP⠀ 22.18
− 4.33
17.85
BioWorks Cease 1 gallon 4 liter 1/ each
BioWorks Cease 1 gallon 4 liter 1/ each
BioWorks Cease 1 gallon 4 liter 1/ each
SKU 206161
SRP⠀ 127.65
− 18.50
109.15
﹟fave
Microbe Life Dechlorinator Water Conditioner Highly Concentrated Thiosulfate, size: 1 pint 500 milliliter 1/ each
Microbe Life Dechlorinator Water Conditioner Highly Concentrated Thiosulfate
Microbe Life Dechlorinator Water Conditioner Highly Concentrated Thiosulfate
SKU 202221202221
SRP⠀ 18.98
− 3.90
15.08
﹟fave
Bluelab pH Up Premium Buffer 1 quart 1 liter 1/ each
Bluelab pH Up Premium Buffer 1 quart 1 liter 1/ each
Bluelab pH Up Premium Buffer 1 quart 1 liter 1/ each
SKU 216651
SRP⠀ 25.33
− 4.94
20.39
Sierra Natural Science SNS 244 Ready to Use, size: 1 pint 500 milliliter with Trigger Sprayer Bottle 1/ each
Sierra Natural Science SNS 244 Ready to Use
Sierra Natural Science SNS 244 Ready to Use
SKU 237521237521
SRP⠀ 29.28
− 6.01
23.27
EGI 200 Proof Ethanol Food-Grade, size: 5 gallon 20 liter Box 1/ each
EGI 200 Proof Ethanol Food-Grade
EGI 200 Proof Ethanol Food-Grade
SKU 216341216341
SRP⠀ 485.77
− 64.50
421.27
﹟fave
Mad Farmer pH Kit with Indicator, Test Tube, and Cap 1 fluid ounce 30 milliliter 1/ each
Mad Farmer pH Kit with Indicator, Test Tube, and Cap 1 fluid ounce 30 milliliter 1/ each
Mad Farmer pH Kit with Indicator, Test Tube, and Cap 1 fluid ounce 30 milliliter 1/ each
SKU 204611
SRP⠀ 13.88
− 2.71
11.17
Trifecta Crop Control Concentrate, size: 4 fluid ounce 125 milliliter 1/ each
Trifecta Crop Control Concentrate
Trifecta Crop Control Concentrate
SKU 209631209631
SRP⠀ 61.06
− 10.69
50.37
﹟fave
Alchemist Isopropyl Alcohol 99.9% Purity, size: 1 quart 1 liter 1/ each
Alchemist Isopropyl Alcohol 99.9% Purity
Alchemist Isopropyl Alcohol 99.9% Purity
SKU 205981205981
SRP⠀ 23.60
− 4.61
18.99
﹟organic
Gowan Captiva Insecticide 1 quart 1 liter 1/ each
Gowan Captiva Insecticide 1 quart 1 liter 1/ each
Gowan Captiva Insecticide 1 quart 1 liter 1/ each
SKU 238891
SRP⠀ 132.80
− 21.50
111.30
﹟organic﹟fave
Safer Insect Killing Soap Concentrate 1 pint 500 milliliter 1/ each
Safer Insect Killing Soap Concentrate 1 pint 500 milliliter 1/ each
Safer Insect Killing Soap Concentrate 1 pint 500 milliliter 1/ each
SKU 207371
SRP⠀ 27.76
− 5.42
22.34
﹟fave
Groline Calibration Solution pH 7.01, size: 0.68 fluid ounce 20 milliliter 1 sachet
Groline Calibration Solution pH 7.01
Groline Calibration Solution pH 7.01
SKU 206871206871
SRP⠀ 2.76
− 0.60
2.16
Brandt Tritek 2.5 gallon 10 liter 1/ each
Brandt Tritek 2.5 gallon 10 liter 1/ each
Brandt Tritek 2.5 gallon 10 liter 1/ each
SKU 206741
SRP⠀ 95.58
− 14.82
80.76
Vegamatrix Prime Zyme 5 gallon 1/ each
Vegamatrix Prime Zyme 5 gallon 1/ each
Vegamatrix Prime Zyme 5 gallon 1/ each
SKU 242991
SRP⠀ 568.99
− 223.50
345.49
﹟fave
CYCO Buffer pH Down, size: 8 fluid ounce 250 milliliter 1/ each
CYCO Buffer pH Down
CYCO Buffer pH Down
SKU 200731200731
SRP⠀ 11.51
− 3.40
8.11
﹟fave
General Hydroponics pH Control Kit with Indicator and Buffers 1/ each
General Hydroponics pH Control Kit with Indicator and Buffers 1/ each
General Hydroponics pH Control Kit with Indicator and Buffers 1/ each
SKU 209511
SRP⠀ 28.58
− 6.44
22.14
﹟organic
Kemin Tetracurb Concentrate Organic, size: 1 gallon 4 liter 1/ each
Kemin Tetracurb Concentrate Organic
Kemin Tetracurb Concentrate Organic
SKU 209311209311
SRP⠀ 255.40
− 34.50
220.90
﹟fave
Bluelab Storage Solution pH Probes, size: 4 fluid ounce 125 milliliter 1/ each
Bluelab Storage Solution pH Probes
Bluelab Storage Solution pH Probes
SKU 203591203591
SRP⠀ 25.37
− 4.95
20.42
BASF Attain Insecticide Total Release TR Aerosol Fogger Can 2 fluid ounce 60 milliliter 1/ each
BASF Attain Insecticide Total Release TR Aerosol Fogger Can 2 fluid ounce 60 milliliter 1/ each
BASF Attain Insecticide Total Release TR Aerosol Fogger Can 2 fluid ounce 60 milliliter 1/ each
SKU 239151
SRP⠀ 52.64
− 9.22
43.42
GardenTech Sevin Insect Killer Zeta-Cypermethrin Ready-to-Spray 1 quart 1 liter 32 fluid ounce 6/ case
GardenTech Sevin Insect Killer Zeta-Cypermethrin Ready-to-Spray 1 quart 1 liter 32 fluid ounce 6/ case
GardenTech Sevin Insect Killer Zeta-Cypermethrin Ready-to-Spray 1 quart 1 liter 32 fluid ounce 6/ case
SKU 250181
SRP⠀ 142.74
− 16.50
126.24
Wipe Out Broad Spectrum Insecticide, Miticide 2.5 gallon 1/ each
Wipe Out Broad Spectrum Insecticide, Miticide 2.5 gallon 1/ each
Wipe Out Broad Spectrum Insecticide, Miticide 2.5 gallon 1/ each
SKU 242971
SRP⠀ 122.41
− 45.50
76.91
BASF Pylon Insecticide & Miticide Chlorfenapyr, size: 1 pint 500 milliliter 1/ each
BASF Pylon Insecticide & Miticide Chlorfenapyr
BASF Pylon Insecticide & Miticide Chlorfenapyr
SKU 217261217261
SRP⠀ 912.86
− 124.50
788.36
Corteva Agriscience Eagle 20 EW Insecticide, size: 1 pint 500 milliliter 1/ each
Corteva Agriscience Eagle 20 EW Insecticide
Corteva Agriscience Eagle 20 EW Insecticide
SKU 239041239041
SRP⠀ 73.87
− 12.93
60.94
﹟fave
GreenGro Water Conditioner, size: 8 fluid ounce 250 milliliter 1/ each
GreenGro Water Conditioner
GreenGro Water Conditioner
SKU 203631203631
SRP⠀ 32.62
− 6.04
26.58
BioSafe Systems Oxidate 2.0 Fungicide, size: 2.5 gallon 10 liter 1/ each
BioSafe Systems Oxidate 2.0 Fungicide
BioSafe Systems Oxidate 2.0 Fungicide
SKU 216061216061
SRP⠀ 195.80
− 22.50
173.30
﹟organic
Monterey Lawn & Garden B.t. Biological Control Concentrate, size: 1 quart 1/ each
Monterey Lawn & Garden B.t. Biological Control Concentrate
Monterey Lawn & Garden B.t. Biological Control Concentrate
SKU 243211243211
SRP⠀ 44.46
− 8.67
35.79
﹟fave
Advanced Nutrients pH Buffer pH Up, size: 1 quart 1 liter 1/ each
Advanced Nutrients pH Buffer pH Up
Advanced Nutrients pH Buffer pH Up
SKU 203021203021
SRP⠀ 36.01
− 6.67
29.34
Display prices in: USD
bottom of page