Neck Extension 200

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The Reef Octopus Neck Extension 200 is a stackable, black acrylic extension for 200-size skimmer necks, extending dwell time and internal water level range for larger Reef Octopus skimmers. Fits: Reef Octopus skimmers using the 200-size neck (traditional o-ring style) Material: black acrylic, o-ring seal Benefit: increased dwell time and higher achievable water level for wetter or drier skimmate control On larger skimmers, a neck extension is often enough to catch up performance after a bioload increase without buying a bigger unit.Compatible with: Reef Octopus skimmers with a 200 o-ring neck. Show more