JB Fittings Schedule 40 PVC couplings are used to join two pieces of pipe. JB Fittings Schedule 40 PVC couplings also come in a range of sizes from ¾” to 2″. You can use couplings to reduce a PVC line so that you can regulate the flow and pressures in the PVC line or system. Couplings meet ASTM D 1784 and ASTM D 2466 standards and are suitable for potable water service.
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