This is an OEM Part manufactured by Zodiac Baracuda.
The diaphragm is one of the most important parts in G3, G4 pool cleaner. It regulates the water flow and enable the cleaner function properly. This yellow diaphragm fits Zodiac Baracuda G3, G4, and Alpha 2, 3, and Zoom pool cleaner. The quality and performance is the same Sturdy, Flexible, Durable as long life diaphragm. Package includes 2 yellow diaphragms.