O Ring Seal For 4 Inch Wine Fermenter Cap
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- Replacement Seal For 4" Fermenter Caps.
- Please Note This Is Not A Seal For Barrel Caps.
this 4" seal is not to be confused with 4" Beer or Cider Barrel Cap Seals - (different cross section). but either seal, different as they are, will benefit from a light application on all sides with specially formulated, Pressure Barrel Seal Grease available from Balliihoo to ensure a good airtight seal with no fear of Contaminating the brew.