Y-Branches 

Name

Code

Diameter (d1)

Diameter (d2)

Diameter (d3)

Diameter (d4)

Y-Branch

SAY

4" thru 48"

-

4" thru 48"

4" thru 48"

Reducing Y-Branch

SAYR

5" thru 48"

-

4" thru 46"

4" thru 46"