King Technology 01010120 New Water Above Ground Cycler 120 inch-line Feed New Water 01010200 In Line Chemical Feeder for above ground Swimming pools/spas (Up to 25,000 gallons) 1.5" Threaded Inlet/Output The New Water Cycler acts as the "water treatment center," controlling the flow of water through the system. The pre-filled Cycler Pac fits into the Cycler with no measuring, no lifting heavy buckets and no over-powering chlorine fumes. Easy to install