This is an o-ring for many Astral pump strainer lids measuring 151.7 x 6.99 mm. This o-ring is identical to these part numbers: Astral 720R1517069, Martec/Sonfarrel 320102, Premier 31418, Sta-Rite U9046, and Waterway 8050439.
The Astral pumps this o-ring will fit are: Victoria, Sprint, Glass Plus, Victoria Plus, Victoria Dual-Speed, Victoria Plus Silent, Columbia, Alaska Max, Alaska Plus, Nautilus, Nautilus Silent, Trent, Proline.
