Need the complete tool compared. One UR5e housing-transfer quote includes the adapter in its drawing but not its mass list; the other leaves its hose arrangement undecided.
Ask each supplier to identify the full loaded assembly and provide its mass, centre of gravity and inertia information for assessment with your intended motion. Include the fingers, adapter and fittings. Who is responsible for that assessment when the hose arrangement is still being chosen? That loose end can easily turn into an extra handover job.