what is this part called?

It is on the firewall on the passenger side in my 68 Fairlane. It has two ports for heater hoses. I need to order one, but don't have a clue what it is called? Do you guys know?

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Heater control valve or heater bypass valve?
[addsig]

I thought it was called the heater bypass valve, but someone told me it was called the heater core. But I has already replaced that so I knew it wasn't called that. Thanks.

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2002-01-25 14:44, rod n az wrote:
It is on the firewall on the passenger side in my 68 Fairlane. It has two ports for heater hoses. I need to order one, but don't have a clue what it is called? Do you guys know?
</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>If the only thing sticking out of the firewall is two tubes then it is called a heater core.

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2002-01-25 14:44, rod n az wrote:
It is on the firewall on the passenger side in my 68 Fairlane. It has two ports for heater hoses. I need to order one, but don't have a clue what it is called? Do you guys know?
</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>If the only thing sticking out of the firewall is two tubes then it is called a heater core.

I meant to say, three ports.