Color Marking Rings are essential accessories for the Series FU Carbon Steel Flat-Face Push-to-Connect Couplings from STAUFF Quick Release Couplings. These rings provide a visual identification system, enhancing the organization and safety of your coupling connections. Available in various colors, they allow for easy differentiation and management of multiple lines in industrial applications. The Color Marking Rings are designed to fit securely around the couplings, ensuring they remain in place during operation. By using these rings, you can quickly identify and manage different fluid lines, improving efficiency and reducing errors in your system.