Pentair R171218 Rainbow 320C Automatic In-Line Chlorine/Bromine Feeder For Pool And Spa - Amber Body<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Rainbow 320 (cylinder) automatic chlorine/bromine in-line pool and spa feeder</li><li>Holds 11 large or 98 small bromine or slow dissolving trichlor tablets</li><li>Treats 6500 to 27000 gallons in a bottom feed configuration and 18000 to 70000 gallons in a top feed configuration with see-through amber body</li><li>Completely enclosed system， no special venting required</li><li>Measures 17-1/2-inch length by 21-inch height by 20-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hduQbQPJL.jpg" noproxy>