Replacement part for Zodiac Baracuda Automatic Pool Cleaners. W74000 Compression Ring Used on Zodiac Baracuda pool cleaners. Fits ALL, used on all Baracuda suction cleaners. The Compression Ring is used to create a leak-proof seal between the cassette body (extension pipe) and the body (diaphragm chamber). Fits Baracuda Alpha, Baracuda Alpha 2, Baracuda Alpha 3, Baracuda Alpha 3 Plus, Baracuda Beta, Baracuda Ranger, Baracuda G3, Baracuda G4, Indigo, Wahoo, 1500, 2500, Pacer, Zippy and Zoom swimming pool cleaners.