Reef Octopus Automatic Skimmer Neck Cleaners. Make your Octopus skimmer more efficient with our new Automatic Neck Cleaner. Octopus motorized (ANC) Automated Neck Cleaner helps keeps your octopus protein skimmer running at peak performance by periodically wiping the inside of the neck where all the bio-organics usually would accumulate. This great skimmer accessory not only keeps you skimmer running at peak efficiency but save the timely chore of keeping your skimmers neck clean. As you know, build up in the neck causes foam to stick to the sides and restricting the collection of skimmate within the skimmers cup. Octopus Self Cleaning Head SRO Dual Blade Auto Neck Cleaning Device Keeping the neck wall clean results in consistent skimmer performance and little to no down time. This device uses twin squeegees to automatically remove the buildup from a skimmer neck. The SRO (ANC) consists of a high torque low RPM motor, wiper mount, lid with mounting clamps and the squeegees. To operate this easy to you device, you simply plug the unit into a timer (not included) or aquarium controller and set it to run for a few minutes 4 to 6 times per day. By running it this way you will never experience crud build up along the walls of you skimmers neck. This will eliminate the daily chore of cleaning for two or more weeks while maintaining the level of skimmate production that you would normally get with only a freshly-washed collection cup. This unit will increase the height of your skimmer by approximately 3 ¾“-5″ depending on the model. Our Octopus ANC does not require you to send in or modify your stock lid in any way because our ANC is built into the lid for precise control. Available Models: 1. OCT-CL110 Octopus Cleaner 110 Fits Following Skimmers: SRO-1000 int, NWB110, DNWB110 2. OCT-CL150 Octopus Cleaner 150 Fits Following Skimmers: SRO-2000 int, NWB150, DNWB150 3. OCT-CLXP1000S Octopus Cleaner XP1000SSS Fits Following Skimmer: XP1000SSS 4. OCT-CL200 Octopus Cleaner 200 Fits Following Skimmers: SRO3000 int, SRO3000 ext, XP2000 sss, XP2000 ext, NWB200, DNWB200 5. OCT-CL170 Fits Following Skimmer: XP 2000 Internal, SRO2000EXT 6. OCT-CL220 Octopus Cleaner 220 Fits Following Skimmers: XP3000int, XP3000ext, XP3000sss 7. OCT-CL250 Octopus Cleaner 250 Fits Following Skimmers: SRO5000 int, SRO5000 ext, SRO-5000 sss, NWB250, DNWB250, XP5000 int, XP5000 ext 8. OCT-CL300 Octopus Cleaner 300 Fits Following Skimmers: SRO6000 ext, SRO6000 sss, TDNW300 9. OCT-CLXP8000 Octopus Cleaner XP8000 Fits Following Skimmers: XP8000