The Zurn Z101 is a 20-inch high-capacity roof drain built to manage heavy stormwater loads on large commercial, industrial, and institutional buildings. Engineered for both performance and durability, it combines a rugged cast iron body with a low-profile dome that keeps the roofline clean while ensuring reliable flow. Ideal for flat or low-slope roofs, the Z101 helps prevent ponding, protects roof assemblies, and supports long service life in demanding conditions.

Key Features

Durable Construction: Heavy-duty cast iron body with protective coating resists corrosion, impact, and long-term environmental wear.
Secure, Efficient Drainage: Integrated flashing clamp and gravel guard maintain waterproofing integrity while keeping debris from obstructing flow.
Streamlined High-Capacity Dome: Low-silhouette cast iron dome provides a large open area for rapid water evacuation while preserving a clean roof appearance.

Downloads:

Specification Sheet

Product Codes: Z101-8NH, Z101-10NH, Z101-12NH, Z101-14NH, Z101-16NH, Z101-8NL, Z101-10NL, Z101-12NL, Z101-14NL, Z101-16NL, ZB101-8NH, ZB101-10NH, ZB101-12NH, ZB101-14NH, ZB101-16NH, ZB101-8NL, ZB101-10NL, ZB101-12NL, ZB101-14NL, ZB101-16NL, ZN101-8NH, ZN101-10NH, ZN101-12NH, ZN101-14NH, ZN101-16NH, ZN101-8NL, ZN101-10NL, ZN101-12NL, ZN101-14NL, ZN101-16NL,

Zurn High Capacity Roof Drains

Zurn Z101 - 20" Diameter Main Roof Drain Low Silhouette Dome