When filtration is complete, put the VITO in the drip pan and place it in the customers kitchen as if it belonged there.
A closing sentence such as "That's it, VITO is a perfect fit for you." is recommended here.
Address the before/after sample in the dishes and focus on the particles that were filtered out.
If a visual result is visible in the fryer (oil has become much clearer), also point that out.
Disassemble the VITO and eject the filter onto a tray so that the particles are visible.
Finally, look at everything next to each other so that the customer has an overview:
The trays with the samples, the fryer, and the filter paper itself → Mention advantages
The savings and ROI then give you a good transition into the sales talk