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About Selecting Thermal Insulation
More
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).
Elbows and tees with PVC jacketing seal using reinforced HVAC tape (sold separately).
Sheets/strips with foil facing reflect heat away from pipe. The foil facing is also known as FSK. Seal with reinforced HVAC tape (sold separately).
Sheets/strips with kraft paper facing have an all-service jacket (ASJ) made of kraft paper. Seal with reinforced insulation tape (sold separately).
Tubes with Kraft Paper Jacketing
Tube
- 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
| ID | For Pipe Size | For Copper Tube Size | Lg., ft. | Flexibility | R Value | Each | |
1/2" Wall Thick. | |||||||
|---|---|---|---|---|---|---|---|
| 5/8" | 3/8 | 1/2 | 3 | Rigid | 2.2 | 0000000 | 00000 |
| 7/8" | 1/2 | 3/4 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 1 1/8" | 3/4 | 1 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 1 3/8" | 1 | 1 1/4 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 1 7/8" | 1 1/2 | __ | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 2 1/8" | __ | 2 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 2 3/8" | 2 | __ | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 2 5/8" | __ | 2 1/2 | 3 | Rigid | 2.2 | 0000000 | 0000 |
| 2 7/8" | 2 1/2 | __ | 3 | Rigid | 2.2 | 0000000 | 0000 |
1" Wall Thick. | |||||||
| 5/8" | 3/8 | 1/2 | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 7/8" | 1/2 | 3/4 | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 1 1/8" | 3/4 | 1 | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 1 3/8" | 1 | 1 1/4 | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 1 7/8" | 1 1/2 | __ | 3 | Rigid | 4.3 | 0000000 | 0000 |
| 2 1/8" | __ | 2 | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 2 3/8" | 2 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 3 1/2" | __ | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 4 1/2" | 4 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 5 1/2" | 5 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 6 5/8" | 6 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 8 5/8" | 8 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 10 3/4" | 10 | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
| 12 3/4" | __ | __ | 3 | Rigid | 4.3 | 0000000 | 00000 |
1 1/2" Wall Thick. | |||||||
| 5/8" | 3/8 | 1/2 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 7/8" | 1/2 | 3/4 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 1 1/8" | 3/4 | 1 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 2 1/8" | __ | 2 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 2 3/8" | 2 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 3 1/2" | __ | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 4 1/2" | 4 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 5 1/2" | 5 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 6 5/8" | 6 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 8 5/8" | 8 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 10 3/4" | 10 | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
| 12 3/4" | __ | __ | 3 | Rigid | 6.5 | 0000000 | 00000 |
2" Wall Thick. | |||||||
| 7/8" | 1/2 | 3/4 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 1 1/8" | 3/4 | 1 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 2 1/8" | __ | 2 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 2 3/8" | 2 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 3 1/2" | __ | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 4 1/2" | 4 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 5 1/2" | 5 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 6 5/8" | 6 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 8 5/8" | 8 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 10 3/4" | 10 | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
| 12 3/4" | __ | __ | 3 | Rigid | 8.7 | 0000000 | 00000 |
3" Wall Thick. | |||||||
| 7/8" | 1/2 | 3/4 | 3 | Rigid | 13 | 00000000 | 00000 |
| 1 1/8" | 3/4 | 1 | 3 | Rigid | 13 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | 3 | Rigid | 13 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 3 | Rigid | 13 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | 3 | Rigid | 13 | 00000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 3 1/2" | __ | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 5 1/2" | 5 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| 8 5/8" | 8 | __ | 3 | Rigid | 13 | 00000000 | 00000 |
| Reinforced Insulation Tape (3" × 30 ft.) | 00000000 | Each | 00000 |
90° Elbows
Elbow
- 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
| ID | For Pipe Size | For Copper Tube Size | Flexibility | R Value | Each | |
1" Wall Thick. | ||||||
|---|---|---|---|---|---|---|
| 5/8" | 3/8 | 1/2 | Rigid | 4.3 | 00000000 | 00000 |
| 7/8" | 1/2 | 3/4 | Rigid | 4.3 | 00000000 | 0000 |
| 1 1/8" | 3/4 | 1 | Rigid | 4.3 | 00000000 | 0000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 4.3 | 00000000 | 0000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 4.3 | 00000000 | 0000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 4.3 | 00000000 | 0000 |
| 2 1/8" | __ | 2 | Rigid | 4.3 | 00000000 | 0000 |
| 2 3/8" | 2 | __ | Rigid | 4.3 | 00000000 | 0000 |
| 2 5/8" | __ | 2 1/2 | Rigid | 4.3 | 00000000 | 0000 |
| 2 7/8" | 2 1/2 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 3 1/2" | __ | __ | Rigid | 4.3 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 5 1/2" | 5 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 8 5/8" | 8 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 10 3/4" | 10 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 12 3/4" | __ | __ | Rigid | 4.3 | 00000000 | 00000 |
1 1/2" Wall Thick. | ||||||
| 5/8" | 3/8 | 1/2 | Rigid | 6.5 | 00000000 | 00000 |
| 7/8" | 1/2 | 3/4 | Rigid | 6.5 | 00000000 | 00000 |
| 1 1/8" | 3/4 | 1 | Rigid | 6.5 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 6.5 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 6.5 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 2 1/8" | __ | 2 | Rigid | 6.5 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | Rigid | 6.5 | 00000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 3 1/2" | __ | __ | Rigid | 6.5 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 5 1/2" | 5 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 8 5/8" | 8 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 10 3/4" | 10 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 12 3/4" | __ | __ | Rigid | 6.5 | 00000000 | 00000 |
2" Wall Thick. | ||||||
| 5/8" | 3/8 | 1/2 | Rigid | 8.7 | 00000000 | 00000 |
| 7/8" | 1/2 | 3/4 | Rigid | 8.7 | 00000000 | 00000 |
| 1 1/8" | 3/4 | 1 | Rigid | 8.7 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 8.7 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 8.7 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 2 1/8" | __ | 2 | Rigid | 8.7 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 2 5/8" | __ | 2 1/2 | Rigid | 8.7 | 00000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 3 1/2" | __ | __ | Rigid | 8.7 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 5 1/2" | 5 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 8 5/8" | 8 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 10 3/4" | 10 | __ | Rigid | 8.7 | 00000000 | 000000 |
| 12 3/4" | __ | __ | Rigid | 8.7 | 00000000 | 000000 |
90° Elbows with PVC Plastic Jacketing
Elbow
- Temperature Range: 0° to 1000° F
- Jacket Temperature Range: 0° to 150° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 6 lbs./cu. ft.
- Color: Red
- Jacket Color: White
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
1" Wall Thick. | ||||||
|---|---|---|---|---|---|---|
| ID | For Pipe Size | For Copper Tube Size | Flexibility | R Value | Each | |
| 7/8" | 1/2 | 3/4 | Rigid | 4.3 | 00000000 | 000000 |
| 1 1/8" | 3/4 | 1 | Rigid | 4.3 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 4.3 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 4.3 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 4.3 | 00000000 | 00000 |
| Reinforced HVAC Tape (3" × 30 ft.) | 00000000 | Each | 00000 |
Tees
Tee
- 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
| ID | For Pipe Size | For Copper Tube Size | Flexibility | R Value | Each | |
1" Wall Thick. | ||||||
|---|---|---|---|---|---|---|
| 5/8" | 3/8 | 1/2 | Rigid | 4.3 | 00000000 | 00000 |
| 7/8" | 1/2 | 3/4 | Rigid | 4.3 | 00000000 | 0000 |
| 1 1/8" | 3/4 | 1 | Rigid | 4.3 | 00000000 | 0000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 4.3 | 00000000 | 0000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 4.3 | 00000000 | 0000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 4.3 | 00000000 | 0000 |
| 2 1/8" | __ | 2 | Rigid | 4.3 | 00000000 | 0000 |
| 2 3/8" | 2 | __ | Rigid | 4.3 | 00000000 | 0000 |
1 1/2" Wall Thick. | ||||||
| 5/8" | 3/8 | 1/2 | Rigid | 6.5 | 00000000 | 00000 |
| 7/8" | 1/2 | 3/4 | Rigid | 6.5 | 00000000 | 00000 |
| 1 1/8" | 3/4 | 1 | Rigid | 6.5 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 6.5 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 6.5 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 2 1/8" | __ | 2 | Rigid | 6.5 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 2 7/8" | 2 1/2 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 3 1/2" | __ | __ | Rigid | 6.5 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | Rigid | 6.5 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | Rigid | 6.5 | 00000000 | 00000 |
2" Wall Thick. | ||||||
| 1 1/8" | 3/4 | 1 | Rigid | 8.7 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 8.7 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 8.7 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 2 1/8" | __ | 2 | Rigid | 8.7 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 3 1/2" | __ | __ | Rigid | 8.7 | 00000000 | 00000 |
| 4 1/2" | 4 | __ | Rigid | 8.7 | 00000000 | 00000 |
| 6 5/8" | 6 | __ | Rigid | 8.7 | 00000000 | 00000 |
Tees with PVC Plastic Jacketing
Tee
- Temperature Range: 0° to 1000° F
- Jacket Temperature Range: 0° to 150° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 6 lbs./cu. ft.
- Color: Red
- Jacket Color: White
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
1" Wall Thick. | ||||||
|---|---|---|---|---|---|---|
| ID | For Pipe Size | For Copper Tube Size | Flexibility | R Value | Each | |
| 7/8" | 1/2 | 3/4 | Rigid | 4.3 | 00000000 | 000000 |
| 1 1/8" | 3/4 | 1 | Rigid | 4.3 | 00000000 | 00000 |
| 1 3/8" | 1 | 1 1/4 | Rigid | 4.3 | 00000000 | 00000 |
| 1 5/8" | 1 1/4 | 1 1/2 | Rigid | 4.3 | 00000000 | 00000 |
| 1 7/8" | 1 1/2 | __ | Rigid | 4.3 | 00000000 | 00000 |
| 2 3/8" | 2 | __ | Rigid | 4.3 | 00000000 | 00000 |
| Reinforced HVAC Tape (3" × 30 ft.) | 00000000 | Each | 00000 |
Sheets/Strips with Foil Facing
Sheet/Strip with Foil Facing
- Temperature Range: -60° to 450° F
- Facing Temperature Range: -40° to 150° F
- Heat Flow Rate: 0.27 Btu @ 75° F
- Density: 3 lbs./cu. ft.
- Color: Yellow
- Facing Color: Silver
Sheets/Strips with Kraft Paper Facing
Sheet/Strip with Kraft Paper Facing
- Temperature Range: -60° to 450° F
- Facing Temperature Range: -40° to 150° F
- Heat Flow Rate: 0.27 Btu @ 75° F
- Density: 3 lbs./cu. ft.
- Color: Yellow
- Facing Color: White
Quick-Install Fiberglass Pipe Insulation
Hook-and-loop fasteners make it easy to install, remove, and reuse this flexible insulation. Use on steam, hot water, and process pipes and fittings.
Tubes
Tube
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
3/8" Wall Thick. | |||||||
|---|---|---|---|---|---|---|---|
| ID | For Pipe Size | For Copper Tube Size | Lg., ft. | Flexibility | R Value | Each | |
| 7/8" | 1/2 | 3/4 | 20 | Flexible | 1.7 | 00000000 | 0000000 |
| 1 1/8" | 3/4 | 1 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 3/8" | 1 | 1 1/4 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 7/8" | 1 1/2 | __ | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 2 3/8" | 2 | __ | 20 | Flexible | 1.7 | 00000000 | 000000 |
Tees
Tee
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
45° Elbows
45° Elbow
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
90° Elbows
90° Elbow
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Unions
Union
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Valves
Valve
- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Fiberglass Building Insulation Sheets and Strips
Also known as batts, these fiberglass sheets and strips are used to insulate walls, ceilings, and floors.
Sheets/strips with moisture barrier prevent condensation from forming. Use electrical tape to secure the ends.
Sheets with Moisture Barrier
