British Berkefeld Black Rubber Sealing Washers (Set of 2)

These official British Berkefeld black rubber sealing washers create a watertight seal between the filter element and the inside wall of your gravity system's upper chamber. If your system is leaking around the filter stem, it's time to replace the washers.

Compatible With:

• British Berkefeld gravity filters (Ultra Sterasyl, Ultra Fluoride, and compatible ceramic elements)
• Systems that use 7/8" stem diameter filter elements

Why Replace Filter Washers?

• Prevents leaks and cross-contamination
• Restores proper pressure seal inside the chamber
• Recommended during filter replacement or maintenance

Product Details:

• Includes: 2 black rubber washers
• Material: Food-grade rubber
• Made in the UK by British Berkefeld

Note: These washers are placed on the inside of the upper chamber. For external hardware (wing nuts and plugs), see related accessories.