We have a zip built into our ceasar stone bench top next to our sink. We opted for the font (the mesh waste) and riser (it attaches to the bottom of the zip to give it extra height) We have instant boiling water (you can only use it when you press the safety switch located under the boiling water switch) chilled filted water and sparkling water. The sparkling water is sensational. We worked out the ratio and it is of equal value (replacing the canister as to buying X amount of bottles of mineral water over the same period) and we drink a lot of it (we are a family of 5) The unit itself sits under the sink and is smaller than a case of beer, and next to it is a C02 canister (resembling a small tube) We now don't have any empty water bottles in our fridge or cupboards, we no longer have a shelf full of mineral water (the filter water is so pure and clean) and I don't have a kettle on display day and night!! Yes the initial outlay is expensive but it looks fantastic is easy to use and I would highly recommend it.

O-ring seal needs replacement. Can buy the full kit from Reece with washer/ o-ring and fiber sealing washer. If would be faster and better option to replace with an Arco washing machine stop, just need to turn water meter off, drain water service at the laundry trough tap, remove old tap, thread tape the point coming out the wall- 10 times round clockwise usually does it and screw the new tap on. tip- make sure the seal is in the washing machine hose before you reattach to the arco.

Did you Google and do any research on the WELS certification? https://www.waterrating.gov.au/check-product-rating. It’s just an efficiency ratings so you could risk using a product that doesn’t have the rating. However a quality plumber may not install it. AFAIK all taps on Australia require a WELS certificate. But the gov website does have a database. And yes lots of the Billi taps have the required WELS rating.

Hello Hayley, You can purchase a water filter cartridge and mounting fittings with a HI-Flow capacity, which installs in the cabinet under your sink for around $150.00 and the cartridge which can be replaced every 12 to 18 mths are around $110.00 . These can be connected to the existing tap to the cold feed, without having to pay for a new tap. The only down side to this is you filter all your cold water from that tap, including washing water; so the filter would definitely need changing 12 monthly. Another option is to also buy a separate small filter Tap but the down side to these is that the flow rate is really slow because these taps use small diameter hose connections and the tap bore is also small, thus limiting the flow. The third option, and the option we always use for our Kitchen Renovations is to use a Hi-Flow filter under the sink and combine this with a new type of "3 in one tap" that has Hot & Cold outlets as well as a separate Filter Water outlet all built into the one Tap. They also come in a large range of colour / finishes, they look better that separate Taps, take up less space, and work better being all in one. They also tend to have large bores and hose connections for the hot, cold & filtered water so combined with a Hi-Flow filter provide really good water flow rates so you can quickly pour a glass of water, rinse veg, fill a pot of even still fill a sink if needed. I hope this helps, Malcolm.