looks like a cut wire cloths hanger with a wire nut.
Looks like an electric heating element to me. What do the connections look like on the bottom?
It's used to hold open your sankey (beer tap) for cleaning the lines from the top down. You fill the line (from the faucet) with cleaning solution, let it sit, then put that in the tap to hold the ball open so that you can drain the cleaning solution.
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