Which Fluval Do I Have?

[PrairieSunflower]

My filter is getting a bit iffy and I want to replace it with the same kind... only... it has been so long (and I bought it secondhand to start with) that I forget if it is a fluval U2 of U3.... how can I tell by looking at it which kind it is??

 

[deannos]

Measure the height, U2 is 20cm, the U3 is 27cm according to their website

 

[PrairieSunflower]

Ah lovely!  I've been looking and only finding volumes of water they process and not actual physical size!

Will measure... thanks!

Yes!  Definitely U3 then!!
 
Thanks!

 

[PrairieSunflower]

Filter officially replaced!  (Media transferred of course).
 
I think my filter was worse than I thought!  Nearly blew all my fish over when I started it up!  I shall clean up my old one and stash it away as an emergency filter.