Stanza 9.5 kW showers are the most suitable retro-fit replacement models:
Stanza 9.5 white*
Alternatively the following showers could also be fitted although some alterations to the pipework and wiring may be required:
9.5 se - with a gloss white finish
9.5 cse - with a satin chrome finish
9.5 gse - with a stylish graphite finish