All of our products feature:

1）Factory-Sealed Assurance: Every cylinder is meticulously factory sealed by the manufacturer to guarantee the purity and quality of the refrigerant inside. You can trust that you are receiving a genuine, uncompromised product.

2）Anti-Counterfeiting Security Shrink Sleeve:    All cylinders have an Anti-Counterfeiting Security Shrink Sleeve.  This advanced security measure ensures the integrity and authenticity of our products, guaranteeing that you receive genuine, high-quality cylinders from trusted industry leaders.dherence to the manufacturer's specifications.

We understand that HVAC systems play a crucial role in maintaining comfort, safety, and efficiency in various environments. Therefore, we only offer products that meet the highest industry standards. When you choose Fanyi, you can trust that you are getting nothing but the best for your system's needs.https://www.heartfev.com/about-us.html