Replacement Button lever on the older SodaStream Machines. I have found a number of them on here, but most are simplified and not designed to be replacements as much as short term fixes. This one will replace the original cracked or broken part and will connect via the same way the original did. I should mention, I run my machine with a large CO2 tank and do not use a back cover. So I have not checked clearance when rear cover is installed.