2 3/4" x 20 3/4" Outlet - Right with 11 1/2" TOC holes,
1/2" hose connection at top, 5/8" hose connection and
1 3/4" hose connection
Fits: Behr/McCord - dimpled header radiator
Gasket: GM-13564G - Included with tank
Note: For tank without TOC holes use GM-13564T