Silicone x ring 3.69x1.78 - 10pcs.

What this O-ring does

This is a set of 10 silicone O-rings measuring 3.69x1.78 mm. O-rings like this create a tight, flexible seal between two fitted parts inside a coffee machine, preventing water, steam or air from escaping at connection points.

Signs it needs replacing

Over time, silicone seals lose elasticity due to heat and pressure cycles. This can lead to small leaks, dripping, reduced pressure, or steam escaping where it shouldn't. Cracked, flattened, or brittle rings are a clear sign that replacement is needed.

Choosing the right one

Since O-rings come in many sizes, always check the compatibility table by the product to confirm this is the correct size and type for your specific coffee machine model before ordering.