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2-In S X 1.5-Inch S PVC Reducer Coupling 429-251
2~20PCS 1/2"3/4"1"Inch PVC Male/Female Thread Equal Path/Reducer/Bushing Joint Fish Tank Garden Irrigation Water Pipe Connectors - AliExpress
2" x 1.5" PVC Slip Adapter - P/N 42959 | Thomas Products Ltd.