BESTOPE&reg; Chlorine Filtration Shower Head with Wheat Mineral Antibacterial Balls for Dry Skin & Hair Low Flow Yet High Pressure with Good Water-saving Mineral Shower Water-saving Head, Water Therapy of Anion, With wheat mineral Antibacterial balls Maximum temperature should not be over 80 C If stop using for long time (one week or so), please put the filter in water to maintain