MODEL #: 3PVL-X6
$ 103.31
MODEL #: 3PVL-X4
$ 49.81
MODEL #: 6DBK-ADDB
$ 43.93
MODEL #: 6DBK-ADOR
$ 38.01
MODEL #: 6DBK-AD
$ 24.14
MODEL #: 6X8-612
$ 20.60
MODEL #: 8X6-611
$ 17.82
MODEL #: 8X6-311P-28
$ 13.60
MODEL #: 6X4-311-24
$ 12.72
MODEL #: 10X8-311P
$ 12.64
MODEL #: 6X5-311P-30
$ 11.79
MODEL #: 6X4-311P-30
$ 11.77
MODEL #: 5X4-311-24
$ 11.45
MODEL #: 5X4-311P-30
$ 11.35
MODEL #: 7X6-311P-28
$ 10.89
MODEL #: 4X3-311P-30
$ 7.68
MODEL #: 4X3-311-28
$ 7.63
Increasers and reducers transition between different duct diameters so you can connect trunk lines to smaller branch runs. A proper fit minimizes turbulence and maintains efficient airflow.