21/64" Air Hose | McMaster-Carr

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3 Products

About Plastic and Rubber Tubing

Semi-Flexible
Compatible with Push to Connect Tube Fittings
Hard (Durometer 50D)
Temperature Range: -30° to 140° F

With excellent resistance to abrasion and tearing, this polyurethane tubing can hold up in rugged environments. The material is ether based, so it stays strong and durable even when exposed to water. Semi-flexible, it’s good for gradual bends.

Opaque tubing blocks your view, so you can’t see inside your line.

For technical drawings and 3-D models, click on a part number.

Opaque Polyurethane Rubber

Opaque Black

Opaque Blue

ID	OD	Wall Thick.	Bend Radius	Max. Pressure	Max. Vacuum	Choose a Color	Lengths, ft.		Per Ft.
21/64"	1/2"	0.086"	1"	130 psi @ 72° F	29 in. of Hg @ 72° F	Black, Blue	5, 10, 25, 50, 100	0000000	00000

Choose-a-Color Firm Plastic and Rubber Tubing for Air and Water

Opaque Tubing

Clear Tubing

Opaque Black

Opaque Blue

Opaque Green

Opaque Red

Opaque Yellow

Opaque White

Clear

Clear Blue

Clear Green

Clear Red

Clear Yellow

Multiple colors allow you to color-code your line for easy identification. Tubing is flexible, so it bends easily around objects.

Polyurethane rubber tubing can handle higher pressures than PVC plastic tubing and can also be used in vacuum applications. It is ether based, so it performs better in humid environments than ester-based polyurethane.

Opaque tubing doesn’t allow you to see what’s flowing through the line. Clear tubing allows you to easily monitor flow.

For technical drawings and 3-D models, click on a part number.

Opaque Polyurethane Rubber

Flexible
Compatible with Barbed Tube Fittings, Compression Tube Fittings, Push to Connect Tube Fittings; see For Connection Style
Firm (Durometer 95A)
Temperature Range: See table

Inch
ID	OD	Wall Thick.	Bend Radius	Temp. Range, °F	For Connection Style	Max. Pressure	Max. Vacuum	Choose a Color	Lengths, ft.		Per Ft.
21/64"	1/2"	3/32"	1 1/8"	-40° to 160°	Barbed, Push to Connect	170 psi @ 72° F	28 in. of Hg @ 72° F	White, Black, Blue, Green, Red, Yellow	5, 10, 25, 50	0000000	00000

Clear Polyurethane Rubber

Flexible
Compatible with Barbed Tube Fittings, Compression Tube Fittings, Push to Connect Tube Fittings; see For Connection Style
Firm (Durometer 95A)
Temperature Range: See table

Inch
ID	OD	Wall Thick.	Bend Radius	For Connection Style	Temp. Range, °F	Max. Pressure	Max. Vacuum	Choose a Color	Lengths, ft.		Per Ft.
21/64"	1/2"	3/32"	1 1/8"	Barbed, Push to Connect	-40° to 160°	170 psi @ 72° F	28 in. of Hg @ 72° F	Clear, Blue, Green, Red, Yellow	5, 10, 25, 50	0000000	00000

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About Plastic and Rubber Tubing

Abrasion-Resistant Hard Rubber Tubing for Air and Water

Choose-a-Color Firm Plastic and Rubber Tubing for Air and Water