Your revised offer seems even more appealing with the addition of "Water Doctor" to the package. It implies that customers not only get access to premium RO systems but also receive expert advice and support regarding their water needs and the functionality of the system. This could include guidance on water quality, usage optimization, and troubleshooting, which adds significant value to the overall proposition. Offering all of this at a starting price of just ₹399/- is likely to capture the attention of potential customers seeking both affordability and quality service.