Instant Water Heater Singapore: Enjoy instant hot water convenience with Rubine's reliable instant water heater in Singapore. Say goodbye to waiting for water to heat up and indulge in a comfortable shower experience anytime. Choose Rubine for your instant water heater needs. Contact Rubine Singapore at [email protected] or call +6596287644. https://www.rubine.com.sg/product-category/heating/electric-instant-water-heater-singapore/