6 Pipe Size Reducers | McMaster-Carr

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173 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Pipe and Fittings

Stainless Steel Unthreaded Pipe and Fittings

Medium-Pressure Stainless Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in medium-pressure lines

10 products

Low-Pressure Stainless Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in low-pressure lines

23 products

Low-Pressure Stainless Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

3 products

Iron and Steel Unthreaded Pipe and Fittings

Low-Pressure Iron and Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in low-pressure lines

12 products

High-Pressure Iron and Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in high-pressure lines

5 products

FM-Approved Medium-Pressure Iron and Steel Grooved-End Pipe Fittings

Clamp to pipe for quick access to fire water mains and sprinkler systems; known as Victaulic fittings

1 product

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

2 products

Plastic Pipe and Fittings

Standard-Wall Plastic Pipe Fittings for Water

The industry standard for low-pressure water lines; also known as Schedule 40

23 products

Thick-Wall Plastic Pipe Fittings for Water

Withstand heavy duty applications, such as water processing; also known as Schedule 80

35 products

CPVC Pipe Fittings for Chemicals

Withstand salt solutions, acids, and other harsh substances

14 products

Iron and Steel Threaded Pipe and Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

9 products

Low-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in lines up to 285 psi; also known as Class 150 flanges

5 products

FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges

Add an access point to fire water mains and sprinkler systems

1 product

Drain, Waste, and Vent Pipe and Fittings

Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Clamp onto pipe for a strong seal and easy assembly

12 products

Stainless Steel Threaded Pipe and Fittings

Low-Pressure Stainless Steel Threaded Pipe Flanges

Create an access point in lines up to 290 psi; also known as Class 150 flanges

3 products

Aluminum Threaded Pipe and Fittings

Low-Pressure Aluminum Threaded Pipe Fittings

For pressures up to 250 psi

3 products

Low-Pressure Aluminum Threaded Pipe Flanges

Create an access point in lines up to 150 psi; also known as Class 125 flanges

2 products

Galvanized Iron and Steel Threaded Pipe and Fittings

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

5 products

Aluminum Unthreaded Pipe and Fittings

Low-Pressure Aluminum Unthreaded Pipe Flanges

Create an access point in lines up to 150 psi; also known as Class 125 flanges

1 product

Other Products

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

4 products