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
Spears 430-010, 1 in Coupling | Cooney Brothers
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PVC Threaded Coupler - 1 Inch FPT x 3/4 Inch FPT (430-131): Amazon.com: Industrial & Scientific