This fiber optic splice closure from CommScope, designed for underground and buried applications, exemplifies reliability and efficiency with its heat shrink cable sealing method. The FOSC™400 A4 model accommodates a total of 48 fibers within a single fusion splicing capacity and features an impact-resistant polymer construction, ensuring durability in challenging environmental conditions. With a pre-installed 12-splice tray and multiple cable entry options, including one oval port and four round ports, it offers versatile installation while the flash test valve enhances water resistance to meet IEC 61300 standards. This robust closure not only simplifies the splicing process but is also suitable for various mounting options, making it a crucial component in fiber optic networks.