This listing is the current replacement function block manufactured by Hansgrohe, (not an after-market replacement) for high-flow eco-max shower roughs, this does not fit the I-box but will replace the older Eco-max function block that uses the high-flow cartridge 96633000.  This includes new shut-offs and cartridges.  Hansgrohe manufacturer's list price is $400.  Forward any questions.  In-stock comes with new O-rings, silicon grease & directions and usually ships in one day from the US.