Quietest shower pump?

[minimoog]

I need a 2 bar twin pump for installation right next to a bedroom. What's the quietest make or model of pump out there? Stuart Turner quote <70 dB, but that means less than a washing machine on spin cycle, which doesn't impress me much.

How's the Techflow QT80 for noise? Any others to look at?

Thanks.

 

[seco services]

stuart turner, salamander, watermill you can hear them all.

 

[cozzmic]

Aqualisa pumps are very quiet, the one I did a few years back I thought was broken as it was so quiet.