Square Reducers | McMaster-Carr

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For Use With

Acetic Acid (White Vinegar) (5% Concentration)

Air

Calcium Chloride

Gasoline

Hydrochloric Acid (10% Concentration)

Natural Gas

Oil

Phosphoric Acid (85% Concentration)

Sodium Hydroxide (Caustic Soda)

Steam

Sulfuric Acid (30% Concentration)

Water

Maximum Pressure @ Temperature

Connects To

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Tee Type

Length

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DFARS Specialty Metals

Exempt

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

2A991

EAR99

RoHS

Compliant

Compliant with Exemptions

REACH

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111 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 Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

Suitable for use in fire-protection applications, these pipe fittings are made of cast iron, so they are brittle and can be quickly opened with the strike of a sledge hammer.

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

The male threads on these fittings have a sealant applied for extra leak protection.

High-Pressure Brass Threaded Pipe Fittings

These brass fittings have the strength to handle high-pressure applications.

High-Pressure Brass Threaded
Pipe Fittings with Sealant

Not only do these brass fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks.

High-Pressure Plated Brass Threaded Pipe Fittings

The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.

UV-Resistant Polypropylene
Pipe Fittings for Chemicals

Made of polypropylene, these fittings won’t deteriorate when exposed to the damaging effects of ultraviolet light and are suitable to use outdoors. They have the chemical resistance to withstand acids, solvents, and other harsh substances.

Plastic Pipe Fittings for Gasoline

Use these plastic fittings to connect gasoline fuel lines to machines and equipment. They have excellent corrosion resistance as well as high strength and impact resistance.

Pipe and Pipe Fittings

FM-Approved Low-PressureCast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Iron and SteelThreaded Pipe Fittings with Sealant

High-Pressure Brass Threaded Pipe Fittings

High-Pressure Brass ThreadedPipe Fittings with Sealant

High-Pressure Plated Brass Threaded Pipe Fittings

UV-Resistant PolypropylenePipe Fittings for Chemicals

Plastic Pipe Fittings for Gasoline

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

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

High-Pressure Brass Threaded
Pipe Fittings with Sealant

UV-Resistant Polypropylene
Pipe Fittings for Chemicals