Geberit Alpha or Sigma Concealed Cistern

[Sheepshanks]

Hi all,

I'm looking to install a Geberit concealed cistern and I'm a bit lost on whether I should be going for the Alpha or Sigma cistern? Are there any major differences between the two?

Thank you

 

[DH GB]

They both have a single blow-mold cisterns so are safe behind the wall. The main difference is setting up infrared touchless flush is easier with Sigma, and you have a choice of 130ish different flush plates with Sigma many of which are metal (and nicer) whereas Alpha's are plastic, still durable but plastic. Sigma is easier to install due to a lot of tool-less maintenance features.