4.6 (584) · $ 4.50 · In stock
The basic difference between a coupling and a union is that coupling is for joining pipe to pipe or pipe to a swedge and the union is made for joining and disassemble a part of a piping system (a steam trap or control valve, etc) for maintenance or replacement. The use of couplings or unions is not a code issue.
Union Pipe Fittings, Size: 3 inch, for Hydraulic Pipe at Rs 250 in
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4PCS PVC Union Coupling 1-1/2, Furniture Grade PVC Union Pipe Fittings with EPDM O-Ring, White Slip PVC Union Coupling Adapter Schedule 40 for
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PVC Pipe Unions : Our PVC union couplings are designed with ture union, which makes the PVC union fittings taken apart for cleaning replacing easily.
4PCS PVC Union Coupling Pipe Fitting, 3/4 Inch PVC Slip Union, PVC Union Fittings Set with Slip Socket Port Connection, PVC Pipe Unions for Swimming