Balboa HA350 Pneumatic 0.7HP Bath Pump
This is one of the most common pumps that will fit most whirlpool baths and is very easy to install.
The HA350 pumps are TÜV approved according to European norms EN60335-1 and EN60335-2-41 with focus on EN60335-2-60 where relevant.
Please note that this pump is a lot stronger than your average whirlpool bath pump, so if you are planning to fit this as an alternative or a bespoke project you may wish to check performance graphs first.