PVC Pipe Unions | McMaster-Carr

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166 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to thick-wall plastic pipe—they have thicker, stronger walls than standard-wall fittings, so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They can withstand pressures up to 900 psi.

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe—they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

CPVC Pipe Fittings for Hot Water

Connect to CPVC pipe for use in high-temperature plumbing and water supply applications.

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

Expansion Joints with Socket
Connection for Plastic Pipe

Reduce stress, vibration, and noise in your plastic socket-connect piping system by creating a point of flexibility.

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How to Identify and Measure Fittings

Pipe and Pipe Fittings

Thick-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

CPVC Pipe Fittings for Hot Water

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

Expansion Joints with Socket
Connection for Plastic Pipe

How to Identify and Measure Fittings

Pipe and Pipe Fittings

Thick-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

CPVC Pipe Fittings for Hot Water

Aboveground Standard-Wall PVC PipeFittings for Drain, Waste, and Vent

Expansion Joints with SocketConnection for Plastic Pipe

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

Expansion Joints with Socket
Connection for Plastic Pipe