The FRBU is a compact, cap-ended, ready-access, fiber-optic splice closure for use in underground, direct burial and aerial installations. More traditional long trays accommodate fiber storage and splicing. 9-Port base configuration offers eight round ports and one oval port for loop-through applications; accommodates tray-to-tray fiber routing typical in PON networks. Supports blown, pushed or pulled fiber/cable deployments to accommodate most construction styles. The mounting system is manufactured from Grade 304 stainless steel and can accommodate a maximum of 6 Hellapon Medium side hinged trays or 3 Hellapon Medium side hinged trays and basket giving a maximum of 144 splices based on 24 per tray. Black.