1. Unique design, no special exhaust device required 2. Airtight design without leakage 3. Flexible external controller 4. Fully automatic low water level design: when the water pump stops working, the water level is automatically lowered to avoid soaking the chlorine pills and prolong the service life of the chlorine pills 5. No need to pass other equipment, the disinfectant is directly injected into the swimming pool or bathtub. All parts are replaceable Specification: Application : outdoor swimming pools, pools, small swimming pools and other with constant temperature Material: Plastic colour: Blue+White Package Contents: 1 x Pool Chlorine Dispenser Only 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.