
1/4 +1/2 Insulated Copper Tube Copper Line Set for Split Air Conditioner. Premium Material Quality: Constructed from 99.9% pure copper adhering to ASTM B280 and C12200 standards. Comprehensive Warranty: Includes a 3-year warranty coverage with free spare parts for peace of mind. High Pressure Rating: Rated for 2100 to 7000 PSI, significantly surpassing the 700 PSI requirement for R410. Customizable Insulation: Insulation can be printed with company name, size, and meters for branding. OEM and ODM Services: Full customization options available including logo printing and design modifications. Multiple Size Options: Available in various AC copper sizes from 1/4' to 1 1/8' with flexible length choices. Global Quality Certification: Certified by TUV, ISO9001, ROHS, and SGS for international market compliance.