Well, subject says it all. The one on mine is distorted and I’m wondering if any 4 or 5 owners have found a suitable replacement. This is the one up front by the glass, not the one back by the flange.

Thanks! :)

There's a slim chance I might have a spare. I bought an ex CTC-4 AXP that I know had the black flange gasket but I don't remember if it had the gray front gasket or not.

Cool. I’m wondering if was a generic extrusion. Then we can all have a spare :)

Cool. I’m wondering if was a generic extrusion. Then we can all have a spare :)
Unfortunately I don't have a spare front gasket (only the black side gasket do I have a spare for). But one of my CTC4s has the AXP out of it right now (the cabinet needs repairs) so all I can give you are pictures of the gasket.

IIRC the inside of the mask is ribbed and the ribs compress the gasket at regular intervals. If the only issue with the one in your set is those regular dimples from the mask I'd just keep using the one you have.

I didn't even remember the front gasket - I guess it usually stays in place when removing the tube? Anyway, sorry to say I don't have a spare. - Good luck.