Still Spirits EZ Filter 40mm washer (10 pack) Replacement washers for the Still Spirits Easy Filter or Still Spirits Easy Inline Filter.
Washers are reusable 2 or 3 times, then they begin to leak.
These washers prevent liquid from leaking past the carbon block. Use one at each end of filter cartridge.
Replace when they no longer maintain normal thickness.
Replacement carbon cartridge here