Uponor AquaPEX reclaimed water tubing offers all the benefits of Uponor PEX-a cross-linked polyethylene – flexibility, durability, corrosion-resistance, 20-year proven history in plumbing and a 25-year limited warranty – with a layer of purple coloring to designate the tubing for graywater systems that supply nonpotable reclaimed water to laundry, toilets and irrigation systems. In a graywater system, water is captured from sinks and showers into a holding tank where it goes through a filtering process. Specially designed purple tubing (the industry-standard color for reclaimed water systems), distributes the filtered, reclaimed water from the holding tank to laundry, toilets and irrigation systems. Incorporating AquaPEX reclaimed water tubing in graywater systems helps buildings meet LEED or National Green Building Standard points. The tubing is listed to cNSFus-rw and AWWA C904.