|This article belongs to the Classic Continuity|
In Alien Force/Ultimate Alien, Plumber Ships are circular in shape and primarily white. They have grey lines coming from the sides of them, connected to white wings. An intergalactic peace symbol is placed in the middle of the ship. The cockpit looks like the Omnitrix symbol.
In Omniverse, the sides of Plumber Ships are longer and the cockpit is more triangular. They are now mostly white with black and green parts and the Plumber symbol on the sides. The Rooters have a black and red variant.
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Ben 10: Alien Force
- Vendetta (first appearance)
Ben 10: Ultimate Alien
- Escape from Aggregor (first reappearance)
- Ultimate Aggregor
- Basic Training
- Prisoner Number 775 Is Missing
Ben 10: Omniverse
- The More Things Change: Part 1 (first reappearance)
- Of Predators and Prey: Part 2
- Tummy Trouble
- The Frogs of War: Part 1
- Weapon XI: Part 1
- Weapon XI: Part 1 (Rooter version)
- The End of an Era (future)
- Even though Kevin criticizes Plumber Ships, he admits to wanting one, even when in the possession of the Rust Bucket 3.
- Plumber Ships are Level 7 technology.