Amazon.com: Charlotte Pipe 3/4" Coupling Pipe Fitting - (Socket x Socket) Schedule 80 PVC Pressure Durable, Easy to Install, High Tensile and Sound Deadening for Home or Industrial Use (Single Unit) :
2 pieces, Charlotte Pipe PVC-08100-1400HA PVC Schedule 80 Coupling, Slip x Slip, 1", Gray - Walmart.com