The diaphragm is one of the most important parts of a pool cleaner; it regulates water flow and allows the cleaner to operate normally OEM Replacement Membrane Number: W69698 OEM Replacement Retaining Ring : W81600 Compatible models: Zodiac Baracuda G3, G4, Alpha 2, Alpha 3, Zodiac Baracuda Zoom, Wahoo, 1500, Manta II, Genius, Kontiki Package contents: 2 cleaning membranes, 2 rings Details: Top quality product. Made of high quality material, durable and convenient to use. Exquisite, perfectly matched with the original equipment. The diaphragm is l one of the most important parts of the pool cleaner; it regulates water flow and allows the cleaner to operate normally. OEM Replacement Membrane Number: W69698. OEM Replacement Retaining Ring : W81600 Compatible models: For Zodiac Baracuda G3, G4, Alpha 2, Alpha 3. For Zodiac Baracuda Zoom, Wahoo, 1500, Manta II, Genius, Kontiki. Color: Yellow (As Pictures Show). Size: 14.2 x 3.5 cm. Contents: 2 cleaning membranes . 2 rings. Note: The color displayed on the computer screen may be slightly different from the actual color of the item.