1/4-1/2 Split Air Conditioner Connecting Insulated Copper Pipe

1/4-1/2 Split Air Conditioner Connecting Insulated Copper Pipe. High Purity Copper Material: Made of 99.9% pure copper meeting ASTM B280 and C12200 standards. Wide Size Range: Available in sizes from 1/4 inch to 1 1/8 inch with lengths up to 50 meters. Durable Insulation: Polypropylene insulation with UV resistance and flame rating M1/B1. High Pressure Rating: Rated for 2100 to 7000 PSI, far exceeding the 700 PSI requirement for R410. Comprehensive Certifications: Certified by TUV, ISO9001, ROHS, SGS, UL94, and ASTM standards. Custom Branding Service: Support for printing company name, size, and meters on insulation. Versatile Application: Suitable for ductless mini-splits, heat pumps, and centralized air ducted units. Long Warranty Period: Comes with a 3-year warranty covering mechanical defects.