While other products may gather unsightly mineral build-up over time, Delta soft rubber touch-clean® spray holes allow any mineral residue to simply be wiped away for an instantly refreshed look – with no need for soaking or the aid of chemical cleaners. Delta WaterSense labeled faucets, showers, and toilets use at least 20% less water than the industry standard—saving you money without compromising performance. You can install with confidence knowing that Delta backs this adjustable slide bar with a lifetime limited warranty.