These are 2 large fiber gaskets that go between the boiler & the base, and the bottom flange nut & the base. Each machine requires 2 and there are 2 in this set!
Each of these gaskets are the same size. One goes between the boiler and the base and the other between the flange nut and the base under the machine. Put some lube on the surface of the flange nut when installing. This pair of gaskets is for all of the machines with the thin flange nut undr the machine.....if you have the flange nut which is wide and often has plastic lobes, then likely you should buy a pro model boiler to base set and use the fat ring under the machine and the skinny one on top.
