ScaleStick Water Filtration System, ScaleStick SC10-11, Twin, (1) ScaleStick SC10-11 Twin Head, (1) CG5-10 carbon block cartridge, (1) SS-10 ScaleStick cartridge, inhibits scale, outlet pressure gauge, 6.0 gpm, 5.0 micron, 1/2" inlet, 1/2" outlet (EV979782)