I've put the delivered adapter beside the still from our molded-housing trial. The connection plate is visibly longer, and the tool hangs differently below it. Our seller says this is the current kit. I would like the actual difference explained before our fitter installs it, rather than asking him to make the quotation work.
Ask the seller to identify both assemblies and assess the delivered one with your housing and destination nest. Also ask for the matching fitting instructions. Being the current kit does not explain whether it can do the trial task with your clearances.