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| [title] The Group Collar Insert | |
| - | [* black] There are two types of collars, the one in the newer BES920/XL machines have the thicker shim causing the portafilter to contact the seal much sooner creating a tighter seal. Some 1st generation BES900/XL models had their whole group head, element and collar upgraded under warranty also. |
| - | [* black] Ensure you purchase the correct insert for your model. |
| + | [* black] There are 2 types of collars for the BES900/XL and the BES920/XL, they are both identical except the internal rim inside the collars vary in thickness, the one in the newer BES920/XL machines have the thicker rim which assists in the portafilter contacting the seal much sooner than the BES900/XL creating a tighter seal. |
| + | [* black] Some 1st generation BES900/XL models had their whole group head, element and collar upgraded under warranty also. |
| + | [* black] Ensure you purchase the correct collar for your machine. |