-FDA approved EPDM
Haven’t used yet. My reserve 4 incher.
Csme quickly, they were ordered as backups
Out of all the 4” gaskets I have owned this is definitely the best!
I got this just as a spare incase I needed one.
This gasket seems to be a little wider then the regular one. Works well with the 4" clear cap. So far it is not leaking :)