55 uv tube. Two pin.
High quality replacement UV Lamps
Osram Standard double ended T5/T8 design
Available in 4w, 6w, 8w, 15w, 25w, 30w, 55w and 75w sizes and are compatible with most brands of UVC. The Standard replacement UV lamps have 2 small pin connections at both ends.
To keep your pond water clear UVC Bulbs should be changed at regular intervals. We recommend that UV Lamps are ideally replaced in the spring before the pond season starts. This guarantees your UVC is functioning at optimum performance when you need it most.