Large Roof Gutters PVC Calhas Pipe Fitting. 30-Year Product Lifespan: Durable PVC material ensures a long service life of up to 30 years for roof drain systems. Custom Color Options: Available in White, Gray, Brown, or custom-made colors to match specific design needs. K-Style Design: Classic K-type shape with dual wall 5.2-inch and single wall 7-inch sizes available. Weather Resistance: Features high-temperature resistance, anti-aging, and excellent UV performance. OEM and ODM Services: Flexible customization available including designs, samples, and full customization options. Lead-Free Material: Made from ethylene polymer material that is lead-free and environmentally friendly. Easy Installation: Designed for easy cutting and installation, suitable for various roofing structures. Comprehensive Warranty: Offers a 15 to 30-year warranty covering non-fading and product defects.