PQ Block Out Tabs protects chlorine from ultra violet light in the form of a uniquely designed tab.
996g/Kg (99.6%) Cyanuric Acid
Easy to use, pre-measured 500gm tabs
Allows chlorine to work more effectively
Reduces chlorine demand
Unique application via the skimmer box
No need to touch the chemical
The level of stabiliser (cyanuric acid) should be tested every 6-8 weeks depending upon rainfall
1 x 500gr Tab per 10,000 Litres will raise the cyanuric acid level by 50ppm
Add directly to the skimmer basket and walk away
Cyanuric acid may take up to 24-36 hours to dissolve completely
Dosage rates indicated are a guide only. Please refer to the label on the bottle for further instructions.
We recommend that you obtain advice from our Pool Professional before adding any treatment to your pool or spa.