Related Clues:
- Problem part aboard the Challenger
- Toric gasket
- Challenger's problem gasket
- Had been close to that woman in Ring
- Rendered sightless
- Joint-sealing ring
- Leak-stopping ring
- Rubber seal
- Flat metal ring; cleanser
- Cleaner used to be a woman
- Toroidal rubber seal
- Plumber often wants it cleaner
- Nut and bolt spacer
- Seal not interesting when head is submerged
- She's engaged in battle to keep things firm