Inflatable pools with filter
— the presence of a filter that provides water purification. This feature can be useful for any pool, but it is especially relevant for large tanks in which it would be difficult to change the entire water.
In modern inflatable pools, cartridge filters are mainly used: they are inexpensive, compact and quite effective. However cartridges have to be changed periodically, but this does not require special financial costs. Sand filters are less common — they are reusable (washable), but more bulky and expensive.
The characteristics of complete filters can be different, but buying such a device right away with a pool is more convenient, and often cheaper than buying separately. On the other hand, some users prefer not to rely on the choice of the manufacturer, but to purchase a filter at their discretion. So this configuration is not always the best option.