12x8 PVC Duct Reducer Coupling
8x4 PVC Duct Reducer Coupling
14x12 PVC Duct Reducer Coupling
12x10 PVC Duct Reducer Coupling
8x6 PVC Duct Reducer Coupling
16x12 PVC duct Reducer Coupling
6x4 PVC Duct reducer Coupling
14x8 PVC Duct Reducer Coupling