Looking for a small-footprint calcium reactor

[SuncrestReef]

I'd like to add a calcium reactor to my Reefer XL 425 (112 gallon system), but my sump space is pretty cramped with existing equipment. I'm looking for a reactor plus CO2 canister that can fit within a 6" wide x 14" deep x 24" tall space in the dry equipment side of the cabinet. Any recommendations?

 

[Reeferdood]

Skimz makes one that has its own feed pump that you can drop into the sump if you have room. The space you have will barely fit the C02 bottle.