1.Ozone generator for swimming pool 2. LCD timer 3. Ozone tube diffuser 4. Air, ... circle workin Product Name:Home kitchen ozone generator for swimming pool Product Usage:Home,indoor,room,house,household,office,hotel, ... . after work, the“ ”icon stop flashing graphics and the pump still work for one minute after the cessation of work ... : N202D, G320, N206 Home kitchen ozone generator for swimming pool