Hayward's CL220 off-line chlorinator is quick and simple to install on existing pools with saddle clamp designed fittings included. The CL220 is the easy and economical way to chlorinate your pool water; simply fill the corrosion proof feeder with trichlor tablets or sticks adjust the dial control for proper chlorine level and enjoy clean, clear water. Saving you time and money! * Simple to install * Can be used for new and existing pools * Uses large or small trichlor tablets and sticks. * Easy and economical way to chlorinate your pool