I bought my STBXW a carpet cleaner / floor shampooer probably 10 years ago.  She's moving her stuff out today and says she wants her carpet cleaner. I say no.  She says it's her's and I bought it for her.

I did buy her one, 10 years ago. We used it, and over time it wore out, the motor broke and it was thrown away. We went without one for several months until we needed one again.  I took it upon myself one day to just go out and buy one because we needed one for something that needed cleaned up.  She thinks she's entitled to this newer one, because I had bought her a different one 10 years ago.

AITA for not letting her have this newer one because I consider these 2 carpet cleaners to be 2 completely different items not related to each other or was the act of buying one for her in the past entitle her to this one as well?  

If any of this is relevant:
We've always had seperate finances, so both in question were bought with my money.  Her new place has hardwood floors, so the only use would be for the upholstery attachment or maybe on area rugs, as opposed to my place (marital home which I'm keeping and buying her out of) which is carpet.  Each of us has one of the kids.  Everything else we've split was clear who it belonged to and has been civil.