What is this?

[towe0609]

I bought a 1/2 ton workshop trailer today and this was in it.

Can anyone tell me what it is and whether it has any value (monetary or otherwise)

http://www.aulro.com/afvb/attachment.php?attachmentid=101941&stc=1&d=1447489755

[digger]

Only guessing fuel bowl of some sort?

[Blknight.aus]

fuel/water/sediment seperator.

that ones junk. when the glass bowl got broken they were replaced with other off the shelf style items.