i had mine snap just coming off the heater matrix 2 years ago originals are plastic i had mine replaced with copper ones https://www.ebay.co.uk/itm/271375339219?_skw=22mm+t+peice&itmmeta=01JVCW3DH7BFMZHVT0C8XQNBJ8&hash=item3f2f3b0ed3%3Ag%3APtQAAMXQVERS2U7N&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1cCJJpE%2BHRPAnJa%2FCMB8gnzuyMQs121geTGYpJ0Y9tCGGVqrAnfVREKpaoCHy7i6GAGhTca2NSylSxRJmMGKY0oTGsTNM7s7e87Eg%2BFln8ryn7bJrH7uFSvZv9ocESGIhcYbz9toWBqkqknUazFwNkOfeHgSAu4hn6W0oxR3Z4lEJ7Y4IDiDo3SpFdyi9JA6N68wCwiYEUv70Ge9gWihHqRpF3D6TH6gfJ0T4w2WL%2BcX--eb%2BZnu9GqMVlBxZTyjhJfRVZTWMbjHs2vkDuEn%2Bhl7tMgihoxL6Q2taTSGE33RQ%3D%3D|tkp%3ABFBMzNuNnNtl&keyword=22mm+t+peice&sacat=0&relatedSearch=true