If going for WD516AN or WD518AN model, you can opt for self service for overall savings.

Reason why LG can offer self service is because these two models have auto hot water internal sterilisation (done on weekly basis) and UV light auto sterilise outlet every hour.

Internal pipe after filter are all made of Stainless Steel.

The only other brand which offer stainless steel internal pipe is SK Magic Jiksoo, price is much more higher compared to LG and no self service available.

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