NT Labs
Diagnosis Tool Dosage Calculator Stockist Finder




Rapid Ammonia Removal

When to Use:

  • For best results use all the time and re-charge regularly.
  • When poor water quality is detected/suspected add more.


  • Rinse before use.
  • Use the filter bag provided.
  • Place in the filter where there is a flow through of water.
  • Re-charge in Spring and every six weeks.
  • Replace 50% every time you re-charge.
  • To re-charge soak the Zeolite in a solution of 4 tablespoons of salt per gallon of water for 24 hours.


Available in the following variations:


Stockist Finder

Simplified map of the United Kingdom.

Find your nearest NT Labs Authorised Retailer.


Let us calculate your dosage for you!

To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.

I know my system's measurements and want to:

Calculate my volume
Dosage calculator

Calculate dosage

You’ll require*
0 g

* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.