The black rubber copper piping design for all products in this air conditioning installation kit is available in both 50FT and 100FT acceptable lengths. This copper tube has a very rough internal surface, which helps guide the refrigerant to achieve the air conditioning effect. External black rubber insulation layer, with good thermal insulation, noise reduction, protection performance, can reduce energy consumption, extend the service life of the pipeline.
| Specification | Copper pipe size (mm) | Insulation thickness (mm) | Length (ft) | 
| 1/4" - 3/8" | 6.35 × 0.8 + 9.52 × 0.8 | 8-25 mm | 10ft - 164ft | 
| 1/4"- 1/2" | 6.35 × 0.8 + 12.70 × 0.8 | 8-25 mm | 10ft - 164ft | 
| 1/4" - 5/8" | 6.35 × 0.8 + 15.88 × 1.0 | 8-25 mm | 10ft - 164ft | 
| 3/8" - 5/8" | 9.52× 0.8 + 15.88 × 1.0 | 8-25mm | 10ft - 164ft | 
| 3/8" - 3/4" | 9.52 × 0.8 + 19.05 × 1.0 | 8-25mm | 10ft - 164ft | 
| 1/2" - 3/4" | 12.70× 0.8 + 19.05 × 1.0 | 8-25mm | 10ft - 164ft | 




 
                  
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