
Flat Siphon Roof Drain Fittings/HDPE Siphon Drainage Pipe Fittings. Premium PE100 Material: Manufactured from virgin PE100 white polyethylene for superior strength and durability. 70+ Year Service Life: Buried PE pipe fittings are designed to last more than 70 years under normal use. High Corrosion Resistance: PE is an inert material resistant to various chemical media and aggressive substances. Hygienic and Non-toxic: Non-toxic, odorless, and approved as green building materials after strict health monitoring. Low Flow Resistance: Low wall friction coefficient ensures strong conveying capacity and efficient fluid transport. International Certifications: Products are ISO9001 system approved and certified to CE standards by SGS. Custom Logo Service: Custom-made logo options available to meet specific branding requirements. Fast Delivery Time: Standard delivery time is 7-10 days for efficient order fulfillment.