Point-of-use tankless water heaters

Can anyone supply a link to this 300 dollar unit? With conversion to cad and shipping it'll still cost around 6 or 7 but it's better than 12. Also I have no idea where it's leaking. There's some rust and blue corrosion around the hot water out fitting and the drain plug is seized which leads me to believe the anode is gone and there could be more damage inside that I'm not seeing. If it is cheaper to have it repaired I'll go down that route instead. 1990 Terry 27.5 J paid 2,000 CAD, only needed interior replaced in the slide upon initial inspection so I thought I was getting a deal but I brought it home and tried to run hot water and there was a steady drip underneath the trailer running down the skirt up to the axles so I ripped the unit out of there and I'm currently in the process of replacing a good chunk of the floor,little bit of the rear wall and the bottom of the wall underneath the floor on the exterior of the trailer.