Dura Plastic FRC-007-12 3/4-Inch Flexible Repair Coupling, Pack of 12 The flexible coupling is manufactured from NSF approved material The Flexible coupling makes it much easier to repair a broken sprinkler line, than having to use the traditional schedule 40 rigid pipe Made from Flexible PVC allowing you to bend the coupling up to 180 degrees The flexible coupling allows you to make a sprinkler line repair in half the time, with half the labor Using the flexible coupling will make aligning the two broken pipes faster and easier because of the flexibility of the coupling