Sani King 980 Performax in-line chemical feeder offers exact metering capabilities with its erosion technology and patented performance valve. The 980 Performax feeder is simple to install for both new and existing pools up to 50,000 gallons. * Designed to perform for pools using chlorine up to 50,000 gallons For bromine pools up to 25,000 gallons * Special Performance Valve allows for more precise metering of chlorine or bromine * Holds up to 10 lbs. * Installs in minutes