An essential replacement part for your Breville coffee maker, helping to create a tight and secure seal that ensures no moisture leaks out. Safe and non-deformed, it won't crack or leak. Perfect Fit - Designed for specific Breville models using a 54mm portafilter, including models 878, 870, 870XL, 860, 840, 810, 500, and 450. Also compatible with other 58mm diameter espresso machines such as Sage 500, 870, 875, 880, 810, and 878. The silicone group head gasket is made from food-grade silicone, BPA-free, and easy to remove and install. Silicone replacement gaskets are a must-have for espresso machine maintenance, and every set needs replacing over time, so having a spare is ideal for coffee enthusiasts. Package includes: 2 pcs 58mm Breville Espresso Machine Brew Group Head Seal Gasket.