Sanitary Tube Unions | McMaster-Carr

	Type Type


Union	Connector

Adapter	Nut

Trap

	Pipe Size Pipe Size

1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6

	Schedule Schedule


40	80

	Connection Style Connection Style

	Material Material

Plastic

Stainless Steel

	For Pipe Schedule For Pipe Schedule


40	80

	For Pipe Material For Pipe Material

Plastic

Brass

Copper

	Color Color

	Dark Gray		Light Gray
	White		Black

	Shape Shape


Straight	270° Bend

	For Use With For Use With

	Gender Gender

Female

Male

	O-Ring Material O-Ring Material

Viton® Fluoroelastomer
Rubber

EPDM Rubber

Buna-N Rubber

	Connection Type Connection Type


Pipe	Tube

	Maximum Temperature Maximum Temperature

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Specifications Met Specifications Met

ASTM

NSF/ANSI

3-A Sanitary Certified

SAE

ISO

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Socket Depth Socket Depth

	Maximum Vacuum Maximum Vacuum

26 in. of Hg @ 72° F

Not Rated

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Maximum Pressure Maximum Pressure

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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251 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 up to 200° F.

Drain, Waste, and Vent ABS Pipe Fittings for Chemicals

These fittings are an economical option for chemical waste systems. Fittings are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.