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Astoria 12228 Group Under Cup Seal 73.5X57.8X8.5 | Fits Wega Polaris EVD

Name: Astoria 12228 Group Under Cup Seal 73.5X57.8X8.5 | Fits Wega Polaris EVD
Brand: Astoria
SKU: EspParts:12228
Price: 2.52 USD
Availability: InStock

$2.52

Description Details

**Astoria Espresso Machine Part: Group Undercup Seal 73.5x57.8x8.5 (12228)**

The Astoria Group Undercup Seal 73.5x57.8x8.5 (Part Number 12228) is a precision-engineered replacement component designed specifically for Astoria espresso machines. Crafted from high-quality, durable rubber, this seal ensures a perfect airtight fit between the espresso group head and the undercup, preventing any unwanted water or coffee leakage during the brewing process. Its exact dimensions—73.5mm outer diameter, 57.8mm inner diameter, and 8.5mm thickness—are meticulously designed to provide consistent, reliable performance and maintain optimal pressure within the group head.

This essential seal plays a crucial role in preserving espresso quality by maintaining the correct pressure and flow path during extraction. By establishing a tight, secure seal, it ensures that water is evenly distributed through the coffee puck, resulting in a rich, balanced espresso shot every time. Additionally, the premium rubber material offers excellent resistance to heat, wear, and coffee oils, which prolongs its lifespan and helps reduce maintenance frequency. This makes the undercup seal an indispensable part of daily upkeep for baristas and coffee professionals seeking to keep their Astoria espresso machines operating at peak condition.

Ideal for both commercial cafes and dedicated home baristas, the Astoria Group Undercup Seal is straightforward to install during routine machine maintenance or group head rebuilds. Using genuine replacement parts like this seal not only safeguards the longevity of your espresso machine but also helps ensure consistently exceptional coffee output. Stocking this part enables quick repairs, minimizing downtime and keeping your workflow smooth—an essential factor for any busy coffee environment or enthusiast aiming for barista-level espresso shots.

Descriptions are for reference only. We do our best to fill in the blanks when manufacturers don’t provide descriptions, but details can vary. We strongly recommend checking with the manufacturer for the exact part number you need. Ordering based on the part number—rather than the description—is the best way to ensure compatibility.

Frequently Asked Questions

Is this group under cup seal 73.5x57.8x8.5 compatible with my Astoria machine?

This Part #12228 fits Astoria machines, including the Wega Polaris EVD, Lavazza LB 4733, Lavazza LB 4734, Lavazza LB 4801, Lavazza LB 4802 series. Compatibility may be specific to the machine's production year and model. Please consult the technical PDFs and compatibility data on this page to confirm a match for your specific unit before finalizing your purchase.

Does this part fit any Astoria model not listed above?

Our current database shows fitment for the Wega Polaris EVD, Lavazza LB 4733, Lavazza LB 4734, Lavazza LB 4801, Lavazza LB 4802 series. However, many Astoria components are interchangeable across different platforms. If you have successfully installed Part #12228 on a model we haven't listed, please let us know so we can update our records for the community.

If you are unsure of the fit, do not guess. To prevent downtime, please view our Compatible Parts Diagrams to check the exploded view PDF for your specific unit, or message our parts team for assistance.

Is this Astoria part 12228 in stock?

Parts from Astoria including this group under cup seal 73.5x57.8x8.5 ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.

Is this a genuine Astoria factory part?

Yes. Part #12228 is a 100% genuine OEM component sourced directly from the Astoria factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.

What is the lead time for Astoria parts?

Lead times for Astoria parts typically range from 3 to 5 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.

What is the warranty on Astoria parts?

All Astoria parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.

What is the return policy on Astoria parts?

All Astoria parts come with a no returns, all sales final return policy. Please see our refund policy or chat for more details.