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JBL ProAquaTest GH

JBL ProAquaTest GH

  • Quick drop test for determining total hardness
  • Colour change test, i.e. you count the drops of reagent you add
  • Colour change from red to green
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The JBL ProAqua GH test set is an easy-to-use quick test for determining the total hardness in fresh water.


  • Colour transition from red to green
  • Includes syringe for simple measurement of the amount of water
  • The number of used drops = level of total hardness
  • For this reason this test does NOT require a color scale

Product safety

safety information in accordance with GHS


Signal word: Danger

  • H226 Flammable liquid and vapour.
  • H314 Causes severe skin burns and eye damage.



JBL is a German company with a long tradition and a vast product range for aquarium enthusiasts. From high-quality fish and shrimp food over external filters to aquatic plant fertilisers - JBL offers an enormous choice for every aquarium keeper.

The research and development department of JBL constantly brings new innovative products onto the market. No matter whether you are an aquascaper, fish keeper, shrimp keeper or planted tank enthusiast, JBL offers suitable tools and accessories for all of these aspects of the hobby in order to support aquarium enthusiasts with the set-up and maintenance of their tanks.

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Customer reviews

This item has been rated 4.7 out of 5 stars
9 Reviews
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5 Stars(6)
4 Stars(3)
3 Stars(0)
2 Stars(0)
1 Star(0)
Pedro R.
Teste fiável
9th June 2021
JBL - Total Hardness Test - Refill
JBL - Total Hardness Test - Refill

Fácil execução e leitura.

Recomendado para saber a dureza da água.

Mais um produto com a qualidade da JBL.

O transporte foi dentro do esperado.

pedro u.
great item
28th February 2020
JBL - Total Hardness Test - Refill
JBL - Total Hardness Test - Refill

todo perfecto, test para saber tu gh, rapido y facil

all perfect!! is perfect to know your gh, easy and quick test

Mehmet B.
Misst zuverlässig.
25th October 2014
JBL - Total Hardness Test - Refill
JBL - Total Hardness Test - Refill

Der JBL GH Test misst zuverlässig die Gesamthärte im Wasser. Einziges Problem was ich mit diesem Tests habe ist dass er nicht sehr lange halthar ist! Nach 3 bis max. (read more)

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