Good Product and easy to use. Instructions are simple and colour is easily determined by the colour chart. The Bottles MUST be shaken prior to use. the Instructions do not state this. The first test i did was a false reading. for the Amount of tests for the price compared to other Equivalents it's worth it.
Verified purchase: Yes | Condition: New
Exactly as advertised, early delivery and superb quality. new products, no sign of use or age. comes with instructions and guides. 5/5 would buy again.
Verified purchase: Yes | Condition: New
Easy to use and understand the colour scale on the tested water sample.
Verified purchase: Yes | Condition: New
Easy instructions and has sorted the issue out, fish are much happier.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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