Green Party member Ed Carlisle, from Leeds, purchased the bath second-hand on buy and sell website Preloved to save money and be more environmentally conscious.
However, in keeping with the purchase, Mr Carlisle decided to eschew driving, instead transporting the tub back from Lancashire on a Northern train.
Taking the train would have saved Mr Carlisle around 30kg of carbon emissions in comparison with a car.
Mr Carlisle said: "Following a lot of heated Facebook debate, and some very niche research on the door width of rural diesel trains, I just transported a bath from deepest Lancashire back to Leeds on the trains.
"It was much easier than I feared and created a load of bemusement. And save a stack of cash and carbon - the alternative was driving."
He added: "A special mention to Northern Rail - who have their failings, but were faultlessly good-natured about this (and on time)."
Transport Secretary Grant Shapps announced on Wednesday that Northern would lose its franchise and come under government control.
The company will be made public from March 1.