OD 4‘’-2.5”(100mm-63mm) （100mm-50mm) Hose connector Vacuum Hose Adapter Plastic Hose Reducer Adapter Connector Flexible PVC Pip

OD 4‘’-2.5”(100mm-63mm) （100mm-50mm) Hose connector Vacuum Hose Adapter Plastic Hose Reducer Adapter Connector Flexible PVC Pip

Aliexpress UK