The OFI1-10-0216PR Plunger Cover by AFL is a critical component designed for compatibility with the OFI 200D and OFI-400 equipment, ensuring reliable and efficient performance in splicing, testing, and fiber optic applications. This cover plays a vital role in protecting test ports, safeguarding equipment during operation, and enhancing the overall functionality of fiber optic power meters and sources. With its precise engineering, the plunger cover is an indispensable part of any technician's toolkit, facilitating seamless testing and handling of fiber optic systems.