strange cartridge on trevi boost

we ahve a trevi boost around 9 years old. have looked at both A963347AA cartridge online and at

S960134 but both look different

the spindle side looks same but cartridge side is normal white plastic head as in A963347AA but main body is white plastic and smaller in dia than cartridge. the base thread also look smaller??

cant find any ref to any other valves. def trevi boost as marked in heads and is mains feed cold? any

help please
Asked 12 years ago by Anonymous

This is the boost cartridge http://www.showerdoc.com/shower-spares/trevi/IDL-A963348-Trevi-Cartridge-Boost-A963348

If yours looks different then can you send me a couple of photos to my email address [email protected]

The boost cartridge is a venturi cartridge, it connects to High pressure mains and Low pressure hot  

 

Answered 12 years ago by The Shower Doctor

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