Boiler O-ring Seal | 9Barista Mk.1
Description
This is a replacement boiler O-ring seal for the 9Barista Mk.1 espresso machine. It’s a key part of the machine’s pressure system, designed to maintain a tight seal between the boiler and upper chamber during brewing.
Made from high-quality, food-grade silicone rubber, the O-ring is durable, heat-resistant, and safe for long-term use in high-pressure environments. Under normal operation, the original seal should last for years. However, if it becomes damaged due to overheating, wear, or accidental pinching during assembly, a replacement may be needed.
Installing a new boiler O-ring helps ensure your machine stays leak-free and delivers consistent pressure for perfect espresso shots. It’s easy to replace and does not require special tools.
Material: Silicone rubber
Internal diameter: 55mm
Cross section: 2mm
Compatibility:
| 9Barista Mk.1 | 9Barista Mk.2 |
| Yes | No |
Your questions, answered
Payment and Shipping
What payment options do you offer?
We offer a range of local payment options based on your region and currency. To find out which payment options are available to you, you should be able to see these on the product page and at the checkout.
Are sales tax and import duties included in the price?
Yes, all taxes and import duties are either included in the price or conveniently calculated at the checkout for you for easy shipping.
How long does it take to ship?
All orders are shipped next day from our Cambridge HQ Monday to Friday where possible.
What countries do you ship to?
We ship globally with a few exceptions, see our shipping page for the most accurate information regarding shipping restrictions.
Customer Support and Returns
What is your policy on returns?
If you're not satisfied with your order, we offer no-fuss returns. For more details regarding returns please see our full policy here.
Where can I get in touch?
If you need to get in touch with one of our team, you can contact us at hello@9barista.com
