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Astoria 28400004

Astoria 28400004 Gasket Aer-Stop

Regular price $3.70

This part ships directly from Astoria and stock is not guaranteed. Lead time averaging 3 to 5 business days for ground shipments, 1 to 2 business days for Overnight.

If unavailable, the item will be backordered. If you have any questions check parts sheets below description. Please email or chat to confirm availability prior to ordering.

Description Details

Astoria Gasket Aer-Stop (Part Number: 28400004) is a precision-engineered replacement gasket designed specifically for Astoria espresso machines. Crafted from high-quality, durable silicone material, this gasket ensures a perfect seal between the group head and the portafilter, effectively preventing any steam or water leakage during the espresso extraction process. Its resilient construction allows it to withstand high temperatures and prolonged exposure to pressurized water, offering long-lasting performance and maintaining the integrity of your espresso machine.

One of the key features of the Gasket Aer-Stop is its enhanced design, which helps optimize the airflow and pressure balance within the espresso group head assembly. This contributes to a more consistent extraction, allowing baristas and home users alike to achieve a richer, fuller-bodied espresso with well-developed flavors and crema. The gasket’s tight fit reduces the risk of channeling and uneven water distribution, which are common issues that can compromise the quality of the coffee shot.

Ideal for regular maintenance and servicing of Astoria espresso machines, the Gasket Aer-Stop is a vital component for professional cafes and serious coffee enthusiasts who demand reliable machine operation and superior espresso quality. Easy to install, this gasket is compatible with various Astoria models, making it a practical and cost-effective solution to prolong the lifespan of your machine and ensure optimal brewing conditions. Available now on Kaldi.com, it’s an essential part for maintaining the high standards synonymous with Astoria espresso equipment.

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

This Part #28400004 fits Astoria machines. 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.

Compatibility for this specific Astoria part is currently being indexed. Because many parts from this manufacturer are cross-compatible, we rely on technical feedback. If you know this is a match for a specific machine, please contact us to help us verify and add it to our list.

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.

Parts from Astoria including this ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #28400004 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.
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.
All Astoria parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.
All Astoria parts come with a no returns, all sales final return policy. Please see our refund policy or chat for more details.

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