The easiest way to connect two pieces of pipe of the same size is with a slip coupling. Slip couplings are used when the pipe doesn't need to be taken
3 Schedule 40 PVC Coupling 429-030
Description Lasco Fittings;SCH40 Coupling Slip x Slip; Size: 3; Color: White; Material: PVC
Lasco 3 Schedule 40 PVC Slip Coupling Socket Slip x Slip, 429-030
This Schedule 40 PVC Slip x Slip Reducer Coupling is used to transition from one size PVC pipe to another in a straight connection. Slip connections require primer/glue. Selecting the correct size fittings to match your PVC pipe can be confusing if you do not already know what size PVC pipe you have. All plumbing grade PVC should have size and rating information imprinted on the outside of the pipe. PVC pipe is named for the inside diameter, commonly referred to as a nominal size.
Schedule 40 PVC Slip Reducing Coupling-Slip Size:1 inch-Slip Size:3/4 inch 429-131
Schedule 40 PVC Pipe Slip Coupling
Pipes and Fittings
King Brothers, 118-30
Schedule 40 PVC Pipe Slip x Slip Coupling (1 1/2 Dia. (5 Pack)) - 429-015
3 in. Schedule 40 PVC Pipe Coupling Slip x Slip (Quantity 25) 429-030-25-P - The Home Depot
The easiest way to connect two pieces of pipe of the same size is with a slip coupling. Slip couplings are used when the pipe doesn't need to be taken
Schedule 40 PVC Pipe Slip x Slip Coupling (3 Dia. (1 Pack)) - 429-030