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Our Products

With a range of product pack sizes to suit all pools and any plant room situation, hth is widely used in the smallest spa pool and water play feature right up to 50m pools and large lidos.

All drums have up to date screen printed labels for conformity to EU and UN regulations.

hth® easiflo® Briquette

10, 25 & 45kg

The unique and patented “pillow shaped” briquette weighs 7gms and ensures great efficiency with minimal wastage. The briquette form offers an enhanced COSHH rating and has 70%* available chlorine content.


  • Smaller pack sizes offer sheer convenience of manual handling for sites with limited access
  • Dosed via a dedicated feeder
  • Offers greater chemical efficiency

*Test data taken from retained samples at our Charleston factory.

hth® Shock


A fast dissolving calcium hypochlorite, with 78%* available chlorine content. An ideal product to shock pool water safely and helps clean filter and surface draw-offs effectively.


  • Long shelf life - ideal for service engineers
  • Fast dissolving granules
  • Very easy to handle and use
  • Clears Algae and burns off inorganic Chloramines
  • Has minimum effect on water balance including TDS and pH
  • Does not add to cyanuric acid levels

  *Test data taken from retained samples at our Charleston factory.

hth® easiflo® Granular

hth® Granular De-dusted

10, 25 & 40kg

We offer a regular de-dusted Calcium Hypochlorite and a patented easiflo® Granular product which brings an anti-scale element to our range. Both have 70%* available chlorine content. The smaller packs are ideal for sites with restricted/limited access to pool plant rooms.


  • Dosed via pump and tank systems or with dedicated feeders
  • Sheer convenience for manual handling 

 *Test data taken from retained samples at our Charleston factory.


Ox. Sol. 2 - H272 May intensify fire; oxidiser.
Skin Corr. 1B - H314 Causes severe skin burns and eye damage.
Aquatic Acute 1 - H400 Very toxic to aquatic life.
Acute Tox. 4 - H302 Harmful if swallowed.

EUH031 Contact with acids liberates toxic gas
EUH206 Warning! Do not use together with other products. May release dangerous gases (chlorine).

Dedicated Feeders

hth® Briquettes are the ideal partner for our family of hth® easiflo® chlorine feeders which are suitable for almost any size of pool, and are designed to eliminate all the problems associated with pumps, tanks and agitator based systems.

See more information about our family of feeders

hth® Supplements



Even when pool water is disinfected and balanced it is still affected by external factors.

hth® FILTERWASH is the solution to ensure the filter remains clean and clear of grease and scale deposits. 

hth®  BANISOL® EXTRA helps efficiently remove scale, rust stains and mineral deposits.