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.
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About Selecting Thermal Insulation
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About Duct Hose
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Solder-Connect Fittings for Copper Tubing
- Temperature Range: 32° to 200° F
Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61 or EN 1057.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Tube Connection (A) | Tube Connection (B) | |||||||
---|---|---|---|---|---|---|---|---|
Copper Tube Size | Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Lg. | Each | |
6 | 6 1/8" | 2 | 2 1/8" | Copper | 200 psi @ 72° F | 6 9/16" | 00000000 | 0000000 |
6 | 6 1/8" | 2 1/2 | 2 5/8" | Copper | 200 psi @ 72° F | 6 1/2" | 00000000 | 000000 |
6 | 6 1/8" | 3 | 3 1/8" | Copper | 200 psi @ 72° F | 6 3/8" | 00000000 | 000000 |
6 | 6 1/8" | 4 | 4 1/8" | Copper | 200 psi @ 72° F | 6 35/64" | 00000000 | 000000 |
6 | 6 1/8" | 5 | 5 1/8" | Copper | 200 psi @ 72° F | 6 35/64" | 00000000 | 000000 |

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
6 | 6 1/8" | Copper | 200 psi @ 72° F | 00000000 | 0000000 |

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Fittings with center stop have a small internal ridge that prevents the tubing from sliding all the way through the fitting.
Tube Connection (A) | Tube Connection (B) | ||||||
---|---|---|---|---|---|---|---|
Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
6 | 6 1/8" | 2 | 2 1/8" | Copper | 200 psi @ 72° F | 00000000 | 0000000 |
6 | 6 1/8" | 2 1/2 | 2 5/8" | Copper | 200 psi @ 72° F | 00000000 | 000000 |
6 | 6 1/8" | 3 | 3 1/8" | Copper | 200 psi @ 72° F | 00000000 | 000000 |
6 | 6 1/8" | 4 | 4 1/8" | Copper | 200 psi @ 72° F | 00000000 | 000000 |
6 | 6 1/8" | 5 | 5 1/8" | Copper | 200 psi @ 72° F | 00000000 | 000000 |

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Copper Tube Size | For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
6 | 6 1/8" | Copper | 200 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 0000000 |

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Copper Tube Size | For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
6 | 6 1/8" | Copper | 200 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 000000000 |
High-Temperature Flexible Duct Hose for Dust

- Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Black
- Temperature Range: -60° to 300° F
The neoprene coating on this hose holds up under high heat. Hose meets UL 94 V-0 for flame retardance. It has a smooth interior for unrestricted flow. Hose is for use with lint, dust, and sawdust.
Warning: Hose should not be used for applications that generate a static charge.
Spiral | Per Ft. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | Max. Continuous Lg., ft. | 1-11 | 12-Up | |
Neoprene-Coated Fiberglass | ||||||||||||||
6" | 6 1/8" | 6" | 50% | 7 in. of Hg @ 72° F | 12 psi @ 72° F | 0.024" | Smooth | Left Hand | Metal | UL 94 V-0 | 12 | 00000000 | 000000 | 000000 |
Heat-Reflective Duct Hose for Air

- Flexible
- Compatible Clamps: Worm-Drive and Quick-Release Clamps
- Color: Silver
- Temperature Range: -65° to 625° F
A metalized polyester cover reflects heat so the temperature inside the hose won't rise. Hose has a smooth interior for unrestricted flow.
Spiral | Per Ft. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Max. Continuous Lg., ft. | 1-11 | 12-Up | |
Fiberglass Hose with Metalized Polyester Cover | |||||||||||||
6" | 6 1/8" | 4" | 20% | 9 in. of Hg @ 72° F | 19 psi @ 72° F | 0.027" | Smooth | Right Hand | Metal | 12 | 0000000 | 000000 | 000000 |
Flexible Rubber Foam Pipe Insulation
Soft and easy to install, this insulation restricts absorption of water, air, and gas. It is often used on cold and hot water lines and refrigeration lines. Seal with contact adhesive (sold separately). To use outdoors, coat in acrylic paint.
Slit tubes have an adhesive strip closure.

- Temperature Range: -295° to 220° F
- Heat Flow Rate: 0.25 Btu @ 75° F
- Density: 4.5 lbs./cu. ft.
- Color: Black
- Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C534
Fiberglass Pipe Insulation
This common insulation material is typically used on hot and cold water lines and in process piping. To use outdoors, add metal jacketing.
Tubes, elbows, and tees are formed to provide the best fit on pipe and are the easiest to install. If your pipe is larger than the sizes we offer, choose a sheet/strip.
Tubes have an all-service jacket (ASJ) made of kraft paper with an adhesive strip closure. Seal with reinforced insulation tape (sold separately).

- Temperature Range: 0° to 850° F
- Jacket Temperature Range: -20° to 150° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 4.5 lbs./cu. ft.
- Color: Yellow
- Jacket Color: White
- Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C547, ASTM C585

- Temperature Range: 0° to 1000° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 5 lbs./cu. ft.
- Color: Brown
- Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C585
2" Wall Thick. | |||||
---|---|---|---|---|---|
ID | For Copper Tube Size | Flexibility | R Value | Each | |
2 1/8" | 2 | Rigid | 8.7 | 00000000 | 000000 |

- Temperature Range: 0° to 1000° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 5 lbs./cu. ft.
- Color: Brown
- Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C585
2" Wall Thick. | |||||
---|---|---|---|---|---|
ID | For Copper Tube Size | Flexibility | R Value | Each | |
2 1/8" | 2 | Rigid | 8.7 | 00000000 | 000000 |