SB12 is a large submersible eyeball fiber optic fitting designed for constant immersion in swimming pools, ponds, and water features. Constructed with durable stainless steel and a 1.02” (26mm) focusing eyeball lens, it provides underwater side-lighting from the mounting surface. The lens offers a 20°–40° focus range, while an o-ring and locking ring provide superior sealing against water ingress. Designed for direct mounting into a 2.09” (53mm) internal diameter pool pipe without requiring a separate backbox, it easily supports larger fiber sizes from 0.08” (2mm) up to 0.31” (8mm). Featuring a wide 2.68” (68mm) flange, SB12 delivers reliable, highly accurate performance in demanding aquatic environments.