The PoolRx Blue pool unit is a 6 month swimming pool algaecide that supports 7 5K - 20K gallon swimming pools. PoolRx reduces chemical demand, improves water quality, simplifying pool care forup to 6 months. The PoolRx pool unit is effective in rejuvenating PoolRx minerals forup to 1 year in the water. Start with a new PoolRx unit at the beginning of each swim season. For year round pool use, Add a PoolRx Booster #102001 after 6 months. PoolRx has been simplifying pool & spa care since 1994 & can support any size body of water & any type of pool. PoolRx is also ideal for salt pools use.
Pool Unit #101001 6 Month Algaecide Treats 7.5k-20k gallons, Single, Blue