“These chlorine tablets from Pool Crab have a 4-fold purpose in that they sanitise, stabilise, act as an algaecide, plus they clarify the water by making debris bind together, which makes the debris easier for the filter to clean. 50 large chlorine tablets are provided and the tub lid is child-proof. The tablets are slow release and UV resistant, we put them into our pool's skimmer and the tablets do last a long time, so this 1Kg tub of tablets will have good longevity. These are very high quality chlorine tablets that are also great value for money..”

“I add these to my dogs / kids swimming pool and they keep it nice and clean, with no visible algae or living bugs (having put the water under a microscope) and that is even though the water is around 6 weeks old and the pool being left open to the elements 24/7 in that time.”

"The 20g tablets are the perfect size for my hot tub dispenser, making them very convenient to use. No need to break or measure anything – just pop a tablet in and you're good to go. These chlorine tablets are highly effective at keeping the water clean and clear. I've noticed a significant improvement in the water quality since I started using them. They dissolve at a steady rate, providing consistent sanitisation. The tablets are straightforward to use and fit perfectly into the dispenser. They’ve made maintaining my hot tub much simpler, allowing me to spend more time enjoying it rather than worrying about water quality. With 50 tablets in the pack, this purchase offers great value for money. They are the perfect size, highly effective, and offer great value for money."

"I ordered these for use with our inflatable hot tub that has a chemical dispenser that fits onto the inside with an adjustable setting to control how much water flows over the tablets inside. The chemical levels on the test strips were consistently good and having used these tablets for a couple of weeks now I'm very happy with them and would recommend to others. Thank you :)"

"This tub of chlorine tablets did a good job in my hot tub and worked just like the ones that came with it.
You get 50 tablets in the tub which is about 1KG in weight, and they last quite a long time so the tub will last well depending on hot tub size etc. When you first open it there is obviously a strong smell of Chlorine so open in a ventilated area and take care when handling the tablets etc as they will leave a powder residue on your hands. Each 20g tablet does a good job at keeping your water clean and hygienic and they don't smell when mixed with the water in the hot tub."