The new AquaC EV Series skimmers can be operated with the Auto Waste Collector. Unlike other brands, these waste jugs feature AquaC`s Twist-Lock flanges with EPDM gaskets that are a snap to remove. Simply twist and pull apart--there aren`t any screws to fiddle with. The carbon chamber reduces ozone odors and the skimmate`s foul odor.Takes either 5/8" or 3/4" hoseAuto shut-off valve prevents overflowing18" X 7"