Stainless Steel 304 Grade Modern design and durable finish to suit all kitchens. WELS 4 star rating 4 Star water efficiency rating, 7.5L per minute. Filtered water Connect an Oliveri inline filtration system to any Essente mixer to enjoy fresh tasting water in your home. Watermark Oliveri mixers carry the Watermark logo, confirming they comply with Australian standards. 10 year warranty Covered by Oliveri's 10 year warranty (refer to Service & Warranty page for details).