Chemical Chlorine Dispenser P05345,P03821:for hot tub spa and Higher Performance: it is easy to set the dispenser for worry-free balanced chemical delivery.Easy to install:attach this P05345,P03821 Chemical Chlorine Dispenser system to the wall of your swimming pool and put the right chemicals in, just adjust the flow of release then you get the exact right concentration to keep your pool water clean and healthy.Applicable Scenarios:it can be used in hot tub spa and Color: Photo ColorMaterial: PCPackage Contents:1 x Chemical Chlorine DispenserOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.