Billi is an Australian designer and manufacturer of eco-friendly and award-winning drinking water systems for both commercial and domestic settings. We also provide drinking water filter cartridges as well as service and filter replacement options (from do-it-yourself to we-do-it-all). Whether you’re thinking about a Billi or a different brand, here are some things you need to know: how to get a drinking water filter replaced and/or how to get a system serviced plus the benefits of instant filtered drinking water systems.