Rubber base (casing) for Berkey or Berkefeld Stainless steel canisters.
If you are not sure of what system you have, measure the bottom diameter of your lower canister.
Measurements are;
- Travel 7"
- Big 8"
- Royal 9"
- Imperial 10"
- Crown 11"
If you are not sure of what system you have, measure the bottom diameter of your lower canister.
Measurements are;