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All answers having "Bathroom fixture" as clue:

3 Character Answers:

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RHO

TUB



4 Character Answers:

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SINK



5 Character Answers:

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BASIN

BIDET



6 Character Answers:

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SHOWER

TOILET



7 Character Answers:

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LUGGAGE



8 Character Answers:

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TOWELROD



9 Character Answers:

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SHOWERROD

TOWELRING