This bathtub brick is compatible with the bricks from the well-know brand. The bathtub sits on top of a 2x6 studs plate.
This bathtub brick is compatible with the “Toilet & Sewer Pipes Marble Run” set of bricks. Print the “sewer pipes” bricks, build a sewer system, then drop a 8 mm marble into the bathtub and it will exit from one or the outlets.