Kreepy Krauly Conquest Pool Cleaner Spare Parts Pleated Seal And Sole Kit.
The Kreepy Krauly EzyVac Kadet pleated seal spare part has a diameter of 370mm with a center hole of 110mm, This Kreepy Krauly seal is 420mm diameter the you would need to get is the smaller one.
This kit has all the normal wearing parts, If you think you only need the pleated seal first check the sole wear as it need deep groves to get enough water to allow the hammer to work the way it should.
This generic pleated skirt is 420 in diameter and the hole is 110mm.