2x Pool Cleaner Diaphragm Fit for Zodiac Bar-racuda G3 G4 W69698 # W81600
(MPN: W69698, W81600. fit for Zodiac Baracuda G3 G4 Alpha 2 Alpha 3. fit for Zodiac Baracuda Zoom. 5) The diaphragm is of the most important parts of the pool cleaner; it regulates the water flow and makes the cleaner operate normally.