Industrial UPVC Concentric Pipe Reducer Coupling 25mm to 32mm (ID)

# Industrial UPVC Concentric Pipe Reducer Coupling 25mm to 32mm (ID) Precision industrial concentric pipe reducer coupling designed for 3D printing. Modeled according to heavy-duty UPVC plumbing, pneumatic, and dust extraction standards. Features a smooth internal conical transition ensuring laminar fluid and airflow without turbulence or backpressure. --- ### Dimensional Specifications: * **Small Port Inner Diameter (ID1):** `25mm` (Wall: `4.0mm`, OD: `33.0mm`) * **Large Port Inner Diameter (I…

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