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Rocket 8mm Brewhead Gasket

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The Rocket Brew Head Gasket works to seal the portafilter into the machine, and keeps the pressure where you want it – right on the puck! This 8mm OEM gasket matches the sizing of gaskets used on brand-new Rocket machines, so if you've had your machine for a while you may want to look into sizing up.

Part number C449900229.

The gasket around the brew head should be changed every year or so to ensure the seal is maintained between the portafilter and the brewhead during extraction. A major sign that the gasket needs to be replaced is if you notice water leaking over the top of the portafilter during extraction.

Check out our Rocket Tune-Up Kits for a complete kit with everything you'll need in regular replacements.

Please note: Replacing this gasket is part of the normal wear and tear/maintenance of the machine and is not covered by your warranty. Please only purchase this to install if you feel technically skilled enough to do so, as we cannot provide any technical assistance over the phone.

  • Tips and Tricks

    Pro Tip from the SCG Crew: This gasket means your portafilter will tighten over more towards the right to lock into place. You may be interested in the 8.5mm brew head gasket if that is not your preference. Both gaskets get the job done! Part number C449900229.

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