The standard diaphragm comes down at an angle on one end..
Suits Classic, New Classic, Super G, Super Genius, Pacer, Best Above & Manta. Genuine Zodiac Product.
Diaphragms when torn, or when they become too elastic, stop the cleaner from working. This standard style diaphragm fits most of the older Zodiac/Baracuda cleaners.
The diaphragm does not come with the secure ring, most times you can slip the secure ring off the broken diaphragm.
The tear on the diaphragm can be hidden under the secure ring.