Iron Pipe Reducers | McMaster-Carr

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951 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

Iron and Steel Threaded Pipe and Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

322 products

Medium-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

60 products

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

Male threads have sealant applied for extra leak protection in low-pressure lines

36 products

Low-Pressure Threaded Pipe Fittings for Joining Dissimilar Metals

A plastic sleeve prevents corrosion when connecting different types of metal

2 products

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

Connect threaded pipe in fire water mains and sprinkler systems

57 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

37 products

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

Add an access point to fire water mains and sprinkler systems

5 products

Galvanized Iron and Steel Threaded Pipe and Fittings

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

248 products

Thick-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe

Pair with medium-pressure fittings; also known as Schedule 80

46 products

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

27 products

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant

Male threads have sealant applied for extra leak protection in low-pressure lines

13 products

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

45 products

Drain, Waste, and Vent Iron and Steel Pipe Fittings

Durable enough for pipe systems above and below ground; also called no-hub and soil pipe fittings

13 products

Drain, Waste, and Vent PVC Pipe Fittings for Joining Metal to Plastic

Connect PVC waste pipe to cast iron pipe without adding bulk

1 product

Iron and Steel Unthreaded Pipe and Fittings

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

20 products

FM-Approved Low-Pressure Iron and Steel Flanged-End Pipe Fittings

Mate with flat-surface flanges, pumps, and valves to add an access point in fire-protection systems

4 products

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

4 products

Plastic Pipe and Fittings

Easy-Access CPVC Pipe Fittings for Chemicals

Connect to pipe with a clamp for quick access to chemical-process lines; known as Victaulic fittings

3 products

Other Products

Slip-On Framing Connectors

Tighten onto slip-on framing rails to build guards, railings, and racks

8 products