Rocket セラミックシャフトグループガスケット

Getting the old gasket out was a pain, but this ceramic version slid right in and created a perfect seal on the first try. I've pulled about a dozen shots so far with zero leaking around the group head.

The ceramic surface slides into the group head much smoother than the rubber ones I've used before, and the seal is tight from the first shot. No more dripping or pressure loss during extraction, which is exactly what I needed.

My old gasket was leaking, but this replacement sealed up tight on the first shot and the ceramic shaft feels much more durable than the plastic stock part.