Relax and let this chlorine dispenser do the work Used for slow release and safe dissolving of Chlorine or Bromine tablets Remove the blue bottom to drop in the tablet Unscrew the base to the desired number to release the chlorine Tab refill without the need to readjust the feeder or fully unwind the stem Weighted bottom keeps the feeder upright Dimensions: 8"H x 4.75"W x 2"D Material(s): plastic Note:Do not mix different types of chlorine in this dispenser - fire and/or explosion may occur from mixing pool chemicals