The Sani-King 960 Performax off-line chemical feeder is quick and simple to install on existing pools with its convenient off-line installation kit included. The 960 Performax offers exact metering capabilities with their erosion technology and patented performance valve. * 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