Floating dip tube weight?

[Tony B]

I’ve been using a stack of small, stainless split rings. I’m going to be changing the tubing on all my floating dip tubes in the coming weeks and looking for a better weight option.
Also, where on the filter thing do you like to put the weight?

 

[wootz001]

I use 1/4 inch SS ball bearings and pop them inside the little filter thing.