Watts - RD-300 - High Volume Roof Drain Drain Fitting Rule of Thumb: Standard application

Rule of Thumb: Standard application requires 4x sections enabling 62" window well height

making it ideal for demanding environments

Z326-4IP-S

Flexible Outlet & Sealing OptionsSupports multiple outlet types and provides interfaces for integration with waterproofing membranes

Z451B-2NL-B-G

Watts - RD-300 - High Volume Roof Drain Drain Fitting Rule of Thumb: Standard applicationThe Watts RD 300 is a medium area roof drain designed for dependable primary drainage on commercial and industrial roof systems. Its epoxy coated cast iron body provides strong corrosion resistance, while the flashing clamp and integral gravel stop create a secure, watertight connection to the roofing membrane. A self locking polyethylene dome protects the drain from debris, and the unit is supplied with a standard no hub outlet for straightforward