Need help finding a mixer tap with three tails

[jimmy]

Hello, I have a mixer tap which needs replacing. The tap has three tails, one tail is cold water mains in, the second tail goes out to a water heater and the third tail is the return from the water heater. Where can I find a tap like this please and what are they called?

 

[nicro3]

Vented tap

 

[neily01]

Heatrae streamline use to have vented taps, called pack h and pack k i think

 

[jimmy]

Thanks for getting back so quickly. Would I have to use a heatrae tap with a heatrea heater or could I use a zip tap? Zip Single Lever Basin Tap - Vented
Just wondering about the compatability and if there would be any issues

 

[stevetheplumber]

any tap provided its vented, its a safety featurethe tap actually turns the supply of before the heater and leaves the outlet of the heater open to the tap to allow the heater to vent into the sink if it should boil due to a stat failing

 

[jimmy]

any tap provided its vented, its a safety featurethe tap actually turns the supply of before the heater and leaves the outlet of the heater open to the tap to allow the heater to vent into the sink if it should boil due to a stat failing

Thanks Steve, I'll get one ordered.