D3996—4" x 2-1/2" Y-Fitting


These fittings provide a step down from a larger main line to smaller branch lines. This step-down increases air velocity near the machine where it's needed most. This Y-Fitting has a 2-1/2" diameter lateral port for connecting to a 4" diameter line.


  • 4" X 2-1/2"
California Proposition 65 Warning