A SUSTAINABLE CHOICE THAT FITS ALL PLASTIC PIPES Since 2003 Isiflo has experimented with different composite materials. Eco Line is the newest addition to our range of Composite products. Our composite products are constructed on the same quality standards as our brass products and have 20 years warranty. All components in the couplings and adaptors can be recycled by the end of life. The products are easy to use, are corrosion free and can be used under ground.