NIBCO 2 in. PVC DWV Hub x FIPT Female Adapter C4803HD2 - The Home Depot
Amazon.com: FangKingNo 2pcs 2Inch White 2-Way PVC Male Adapter Pipe Fittings (Slip to Male Thread) Coupling with 2-Inch Male Hose Thread Schedule 40 -2 Pack (2") : Industrial & Scientific
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Charlotte Pipe 2 in. PVC Schedule 80 Coupling PVC 08102 2000HA - The Home Depot