LDR Industries 3/4 in. PVC Schedule 40 Slip Coupling at Tractor Supply Co.
Amazon.com: SUNGATOR 3/4 Inch Slip Coupling, Repair Coupling, No Lead Brass Push to Connect Plumbing Fittings to Connect PEX, Copper, CPVC, PE-RT, With A Disconnect Clip, Pack of 3 : Industrial &
Apollo 3/4 in. x 3/4 in. PVC Slide Repair Coupling PVCC34SL - The Home Depot
Everbilt 3/4 in. Copper Pressure Slip Coupling Fitting C601HD34 - The Home Depot