54mm Silicone Ring, 3-Pack Grouphead Gasket for Espresso Machines 878/870/860/840/810/500/450/Sage 5 Replacement gasket compatible with espresso machines models 870, 878, 880, 860, 840, 810, 450, 500, Sage 500, Sage 810, Sage 870, Sage 875, Sage 878, Sage 880, and Ageespresso coffee machines. Made from food-grade silicone, BPA-free, durable, and resistant to high temperatures. Withstands temperatures from -65°F (-54°C) to 450°F (230°C). The 54mm silicone ring provides a secure fit, ensuring a tight seal to prevent water leakage and reduce the need for frequent replacements. Soft and flexible design allows for easy installation into the groove. Color: As shown in photo Material: Silicone Contents: 3 x Silicone Rings Note: Light reflection and display settings may cause slight color variations. Measurement may vary by +/- 1-3cm.