| Tube type | Color code | Standard | Application 1 | Commercially available lengths 2 | ||
|---|---|---|---|---|---|---|
| Nominal or standard sizes | Drawn | Annealed | ||||
| Type K | Green | ASTM B 88 3 | - Domestic water service and distribution - Fire protection - Solar - Fuel/fuel oil - HVAC - Snow melting - Compressed air - Natural gas - Liquified petroleum (LP) gas - Vacuum |
Straight lengths: | ||
| 1/4 inch to 8 inch | 20 ft. | 20 ft. | ||||
| 10 inch | 18 ft. | 18 ft. | ||||
| 12 inch | 12 ft. | 12 ft. | ||||
| Coils: | ||||||
| 1/4 inch to 1 inch | - | 60 ft. | ||||
| - | 100 ft. | |||||
| 1-1/4 inch and 1-1/2 inch | - | 60 ft. | ||||
| 2 inch | - | 40 ft. | ||||
| - | 45 ft. | |||||
| Type L | Blue | ASTM B 88 | - Domestic water service and distribution - Fire protection - Solar - Fuel/fuel oil - Natural gas - Liquified petroleum (LP) gas - HVAC - Snow melting - Compressed air - Vacuum |
Straight lengths: | ||
| 1/4 inch to 10 inch | 20 ft. | 20 ft. | ||||
| 12 inch | 18 ft. | 18 ft. | ||||
| Coils: | ||||||
| 1/4 to 1 inch | - | 60 ft. | ||||
| - | 100 ft. | |||||
| 1-1/4 inch to 1-1/2 inch | - | 60 ft. | ||||
| 2 inch | - | 40 ft. | ||||
| - | 45 ft. | |||||
| Type M | Red | ASTM B 88 | - Domestic water service and distribution - Fire protection - Solar - Fuel/fuel oil - HVAC - Snow melting - Vacuum |
Straight lengths: | ||
| 1/4 inch to 12 inch | 20 ft. | N/A | ||||
| DWV | Yellow | ASTM B 306 | - Drain, waste, vent - HVAC - Solar |
Straight lengths: | ||
| 1-1/4 inch to 8 inch | 20 ft. | N/A | ||||
| ACR | Blue | ASTM B 280 | - Air conditioning - Refrigeration - Natural gas - Liquefied petroleum (LP) gas - Compressed air |
Straight lengths: | ||
| 1/4 inch to 4-1/8 inch | 20 ft. | 4 | ||||
| Coils: | ||||||
| 1/8 inch to 1-5/8 inch | - | 50 ft. | ||||
| OXY, MED OXY/MED OXY/ACR ACR/MED |
(K) Green (L) Blue |
ASTM B 819 | - Medical gas - Compressed medical air - Vacuum |
Straight lengths: | ||
| 1/4 inch to 8 inch | 20 ft. | N/A | ||||
1 There are many other copper and copper alloy tubes and pipes available for specialized applications. For information on these products, contact the Copper Development Association, Inc.
2 Individual manufacturers may have commercially available lengths in addition to those shown in this table.
3 Tube made to other ASTM standards is also intended for plumbing applications, although ASTM B 88 is by far the most widely used. ASTM Standard Classifications B 698 lists six plumbing tube standards including B 88.
4 Available as special order only.