Spare Catalyst Lid Seal
Spare Catalyst Lid Seal
Spare Catalyst Lid Seal

Spare Catalyst Lid Seal

$9.99
Replacement silicone lid gasket designed to maintain an airtight seal for The Catalyst Fermentation System during brewing and fermentation.
  • Replacement silicone gasket for The Catalyst Fermentation System
  • Helps create an airtight fermentation seal
  • Removable for easy cleaning and sanitizing
  • Food-grade silicone construction
  • Ideal as a replacement or backup seal

A secure lid seal helps maintain a controlled fermentation environment by reducing outside air exposure during active fermentation and conditioning. The silicone gasket fits around the Catalyst lid to create a tight seal while still allowing CO2 to escape through the airlock system.

The removable design also makes cleaning and sanitizing easier between brewing sessions.

  • Spare Catalyst Lid Seal (silicone gasket only)

Note: This product does not include the fermenter lid or Catalyst tank.

This lid seal is designed specifically for:

  • The Catalyst Fermentation System
  • Catalyst 6.5 Gallon Conical Fermenter lids

It is not intended for use with standard carboys, buckets, or non-Catalyst fermenters.

  • Material: Food-grade silicone
  • Compatibility: The Catalyst Fermentation System
  • Reusable: Yes
  • Removable for Cleaning: Yes
  • Color: White silicone gasket
Spare Catalyst Lid Seal
$9.99

Frequently Asked Questions

The lid seal creates an airtight connection between the Catalyst lid and fermenter tank during fermentation.

No. This lid seal is designed specifically for The Catalyst Fermentation System.

No. This product includes only the replacement silicone gasket and does not include the lid.

Yes. The silicone gasket is removable for cleaning and sanitizing between brewing sessions.

Replacement seals are useful if the original gasket becomes worn, damaged, stretched, or difficult to sanitize fully.

The gasket is made from food-grade silicone suitable for brewing and fermentation use.


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