Description:  Made of PP material, more durable and sturdy.  Special design, no exhaust device needed.  Floats on pool surface to decontaminate water.  Adjustable dial to control sanitizer levels.  Great for keeping your pool or spa ready to use and free from algae, bacteria and foul odors     Specification:  Types: 1(Disinfection Tablets + Tablet Dispenser), 2(Jaysuing Tablets+Tablet Dispenser), 3( Super Tablets+Tablet Dispenser)   Color: Blue  Material: PP  Size: about 13.5x12x12cm     Package included:  1 x Tablet Chemical Dispenser  1 x Pool Cleaning Tablet     Note:  1. Due to the light and screen difference, the item's color may be slightly different from the pictures.  2. Please allow 1-3cm differences due to manual measurement.                                                                     Description: Made of PP material, more durable and sturdy. Special design, no exhaust device needed. Floats on pool surface to decontaminate water. Adjustable dial to control sanitizer levels. Great for keeping your pool or spa ready to use and free from algae, bacteria and foul odors   Specification: Types: 1(Disinfection Tablets + Tablet Dispenser), 2(Jaysuing Tablets+Tablet Dispenser), 3( Super Tablets+Tablet Dispenser) Color: Blue Material: PP Size: about 13.5x12x12cm   Package included: 1 x Tablet Chemical Dispenser 1 x Pool Cleaning Tablet   Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement.