Depending on what is already plumbed in under the sink, an appliance branch connector should do the trick.
Just be careful to make sure it doesn't allow a run of foul water from the sink back into any part of the coffee machine's outlet or that could cause a stink.
Depending on what is already plumbed in under the sink, an appliance branch connector should do the trick.
Just be careful to make sure it doesn't allow a run of foul water from the sink back into any part of the coffee machine's outlet or that could cause a stink.