This is an ASTM B280 copper piping kit for air conditioning with a diameter of 3/8-5/8 inches and a length of 50FT. The internal copper pipe is manufactured in strict accordance with the standard and has strong corrosion resistance to ensure efficient and stable refrigerant transmission. The exterior is wrapped with thick black rubber insulation layer, which can effectively heat insulation, noise reduction, moisture-proof, reduce energy loss, and lay a solid foundation for stable operation of air conditioning.

|  Specification | Copper pipe size (mm) | Insulation thickness (mm) | Length (ft) | 
| 1/4 - 3/8 |  6.35 × 0.8 + 9.52 × 0.8 | 1/2" - 1"  (13 mm- 25 mm) | 10ft - 164ft | 
| 1/4 - 1/2 | 6.35 × 0.8 + 12.70 × 0.8 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 
| 1/4 - 5/8 | 6.35 × 0.8 + 15.88 × 0.9 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 
| 3/8 - 5/8 | 9.52 × 0.8 + 15.88 × 0.9 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 
| 3/8 - 3/4 | 9.52 × 0.8 + 19.05 × 1.0 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 
| 1/2 - 3/4 | 12.70 × 0.8 + 19.05 × 1.0 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 
| 1 - 1/8 | 28.6 × 1.3 | 1/2" - 1" (13 mm- 25 mm) | 10ft - 164ft | 





 
                  
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