Aqualisa Quartz Thermo - pump required

[I'm no plumber]

I've got the above shower in my en-suite, and I was wondering what was the best pump to get. Doing a quick browse I saw the following:

Mach Pump MC0120
Mach Pump MC0250

What's the best option? Are there any other pumps out there that fit the Aqualisa? What's the cheapest I can buy the pump for.

Cheers, I'm No Plumber.

 

[Puddle]

Well the two aqualisa pumps you list above are made by stewart turner a very good pump manufactorer,you can purchase the same pumps with thier own name on for a lot less
a 1.5 bar pump gives you a nice powerful shower
a 2.5 bar shower is more intense ,good if you like to to feel the shower like little pins against your skin
Obviously you will have to check system ok for shower pump ie not on mains