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 (Replaces Fi-Clor Superfast Granules)

Out of stock

£67.10

Out of stock

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.