This MAREVA pack is ideal for jumping into the pool as soon as possible after a long period of inactivity, having disinfected it beforehand. The combination of these two shock clarifiers is particularly effective. Both contain different active ingredients: Revatop is made up of active oxygen, which will allow you to disinfect and restore the beauty of your pool in a very quick, effective and powerful way, by removing green algae in particular, within a few hours of its application. Revatop is particularly effective for common shock treatments or clarifying the green water of a pool in just a few hours and returning it to its bluish color; this anti-algae is curative and preventive with an immediate effect that is visible within minutes. However, for increased effectiveness if your water has been deprived of disinfectant for a long time, it is better to combine it with shock chlorine. It is very useful when your pool is particularly dirty and cloudy and sometimes even green in colour, or even at the change of season after winter, during hot weather, after heavy use of the pool, after heavy rain or when the disinfection capacity is simply too low. The result is no more bacteria or germs and a clear, blue colour again. You can then use a regular maintenance product and keep the remains of shock treatments for later (to be done once a month) Advantages: Ideal for opening your pool after a long period of inactivity Ultra powerful and fast purifying and disinfecting shock action Cleans the dirtiest and cloudy water Easy to use Large quantities Features: Revatop : 5 L canister Can colour: Blue Hydrogen peroxide concentration: 12%. A 5L can of Revatop for a pool up to 50 m3 Chlorine Shock : 5 kg of chlorine in the form of 125g effervescent pebbles Bucket One pebble for 12.5 m3 of water Complete action in 12 hours To be put directly into a floating/skimmer doser The pebbles are compatible with all types of pools and liners however it is necessary to avoid putting them in direct contact with the liner. Packaging : MAREVA REVATOP 12% Algaecide - 5 L - 000124Marine chlorine pebbles - 5 kg - 125 g - 100209Delivered in their original packaging