JBL buffer solution pH 4,0
Calibration solution with pH 4.0 for pH electrodes

  • Professional use of pH electrodes for aquariums: liquid for the calibration of electrodes with pH 7.0
  • Easy to use: fill buffer solution into cuvette. Remove the electrode from the water. Immerse and rinse dry electrode according to instructions
  • No falsification of the pH value: precise measurement through calibration of the electrode
  • Safe storage: small bottle with screw cap. Repeated use
  • Package contents: 50 ml calibration liquid for pH electrodes, buffer solution pH 7.0
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basic price 14,70 EUR / 100 ml
Recommended retail price incl. VAT
Available from your specialist dealer.
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Product information

Healthy fish thanks to ideal pH value
The pH value defines the acidity of the water. It needs to be constantly checked and adjusted as necessary to maintain the health of the fish and plants. The correct pH value depends on the fish stock of the aquarium. The wrong pH value can cause stress and diseases.

Easy connection
Connect the pH electrode with the BNC connection to the respective measuring and control device.

The electrode has been individually tested and documented and needs to be replaced after about 2 year. It has a large protective cap, filled with storage solution.


JBL buffer solution pH 4.0

Art. no.:
EAN Code:
50 ml
Volume packaging:
0.160 l
Gross weight:
63.000 g
Net weight:
54 g
Weight factor:
32/96/32 mm

Technical Data

Are the calibration liquids JBL buffer solution pH 4.0 and JBL buffer solution pH 7.0 colour coded to avoid confusion?

Yes, the calibration liquids JBL buffer solution pH 4.0 and JBL buffer solution pH 7.0 are colour coded:

JBL buffer solution pH 4.0 – yellowish colour
JBL buffer solution pH 7.0 – light blue colour

Should the colours not be recognizable, please replace the calibration liquids.

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The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

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Water Analysis Online Laboratory

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds. You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.

safety instructions

  • JBL Pufferloesung pH 4,0 50 ml
    32 kByte