Not made of metal - Part of a boat or plumming maybe

[eman1000]

Any idea what this is? I picked it up in a bottle dump I stumble upon this weekend. Thought it looked interesting and had the feeling I had seen one before. It is not made of metal. Possibly porcelain... The other side has a small square hole as well.

 

[bowwinkles]

looks like a carburetor float, is it hollow and lite?

 

[CRUSADER]

Some kind of insulator?

 

[eman1000]

looks like a carburetor float, is it hollow and lite?

I was thinking a float of some kind. The material appears to be solid possibly compacted styrofoam.

 

[Tony in SC]

Found in a bottle dump, could be an old medical bottle stopper?

 

[Doubter in MD]

I agree with Tony. Stopper like the one in the photo? I don't know what that particular bottle with the tubes sticking out of it is called, but someone will.

 

[bradyboy]

electrical insulator
can we see other side
does the square hole go thru to the other end, so they matchup?

 

[BennyV]

Toilet float or bilge pump float?