The D Series is a complete line of DWV fittings designed for use with DWV/Sch 40 Dual-marked pipe in non-pressure Drain, Waste & Vent applications.
Royal's DWV/Sch 40 Dual-marked pipe is a lower-cost, tough, impact resistant alternative to conventional iron piping. Certified to NSF-14, CSA B137.3 and ASTM D1785 for pressure usage and ASTM D2665 for non-pressure applications. Check for availability in your area.
- NAPCO Plumbing Solutions offers the most accurate fittings in the industry, providing an easy fit to the pipe.
NAPCO Plumbing Solutions Injection molded fittings have Triple Certification listings.
We want to help you get your project started. That’s why there are NAPCO representatives all across North America.