Only specified for the Big Dream T model, produced in 2022. Works in conjunction with a basket like shower screen assembly, as opposed to the flat screen with screw type. This gasket holds the Big Dream T shower screen in place.

73 x 56 x 8 mm with three internal cuts, branded "Ascaso - food grade silicone - I.5359".

These gaskets are not recommended for small home units. The silicone material is quite soft, and the user may need to awkwardly hold the unit down wile engaging the portafilter in order to obtain a sufficient seal.