This kind of chemical dispenser is made of non-corrosive polypropylene material so you can enjoy your luxurious Spa experience with no worries. The chemical dispenser are in order to keep it clean and up to standard that you can enjoy your pool,spa or hot tub Used for dispensing Bromine and Chlorine in your swimming pool, jacuzzi hot tub or spa for a cleaner swimming and relaxing experience Remove the cap from the top of the pool dispenser to add your tablet and allow it to slowly release through the outlet at the bottom as it floats around the pool This size of this floating dispenser for pools is recommended for use in pools, spas and hot tubs that are up to 30m in size Colour: blue Product includes: 1pc Size: 132*125*45 mm