ATO Suggestions
 

I have an old school Tunze Osmolator.

the kind that came on the bracket rather than the magnet.

It's a pretty tight fit with everything else I have in my RSM130 so I'm looking to buy a new one (or a new to me one, if you have one for sale).

What would you folks recommend a far as taking up the least amount of real estate?

Should I just upgrade my Osmolator to the magnet?

Thanks in advance for your insight.

I would just upgrade your Tunze to a magnet, I have the 3155 and it works rock solid never a problem once dialled in to the water level required in my RSM250 rear sump.

Thanks for that...

I have the Tunze 3152 (with the magnet) in the back of my rsm130 and it's been perfect. Holds well and easy to move around if needed.