The hat is dark green and light yellow and has a steel funnel on the top of it. It also has a squirting cap on the front, in order to juice out vegetables.
Role in episode
After Mr. Krabs finds out that the Soda Drinking Hat is worth a lot of money, he buys a bunch of hats to trade SpongeBob for the Soda Drinking Hat. One of those hats is the Juicer. SpongeBob declines the hat since, according to him, it was "a little gross."