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Our experts say...

Fast dissolving and quickly kills all types of bacteria without changing the level of stabilised chlorine in the water.

hth Unstabilised Chlorine Shock 5kg (Box of 2)

10 in stock

£120.00

10 in stock

Buy now and earn 120 My Azure Points. Remember, with just 100 points in your account, you'll get a £10 discount on your next order.

What it does...

hth Unstabilised Shock Granules are a powerful shock chlorine treatment, and is the direct replacement for Fi-Clor Superfast.

Suitable for use in all pools, this stabiliser free chlorine avoids a build up of cyanuric acid in the water.  The extra fine granules dissolve easily reducing the risk of marking or bleaching the liner.

Product Features:

  • Extra fine powder dissolves easily
  • Calcium hypochlorite (non-stabilised chlorine)
  • For all types of pools
  • Minimum 75% chlorine content
  • Quickly increases chlorine content
  • Corrects green or cloudy water

How it works...

Can be used as part of a regular water care routine or to correct green or cloudy water as required.

Dosage:

  • Shock dosage is 150g of product per 10,000 litres of pool water
  • 15 grams of product in 10,000 litres of water will raise the Free Chlorine Level by 1mg/l (1ppm)
Please note that Fi-clor have rebranded to hth.
hth Unstabilised Chlorine Shock has replaced
Fi-Clor Superfast Shock Granules.

FREE DELIVERY ON ORDERS OVER £85

Please note that this does not include the Channel Islands, the Isle of Man or Northern Ireland.