Zurn ZA100-4IP-AC-G 15" Diameter Roof Drain, Aluminum Dome, 4" Threaded Connection, Angular Underdeck Clamp, Galvanized

Zurn ZA-100-4IP-AC-G 15" Roof Drain with 4" Threaded Inlet & Aluminum Dome

Product Description:
The Zurn ZA-100-4IP-AC-G roof drain is a rugged and efficient solution for flat or low-slope commercial roof drainage systems. Featuring a 15" Dura-Coated cast iron drain body and a 4" threaded connection, this unit is engineered for long-term performance in concrete deck applications.

Equipped with a galvanized angular underdeck clamp and a low-profile aluminum dome strainer, the system promotes secure installation and reliable water capture—even during heavy rainfall. The integrated clamping collar and membrane flashing clamp ensure a watertight seal, making it ideal for both new builds and retrofit projects.

Key Features:

• 15" Diameter Roof Drain: Large surface area for efficient water collection

• 4" Threaded Connection: Secure inlet compatible with standard piping

• Dura-Coated Cast Iron Body: Provides strength and corrosion resistance

• Low-Silhouette Aluminum Dome: Prevents debris entry while allowing free water flow

• Angular Underdeck Clamp: Ensures tight installation to structural decking

• Clamping Collar + Flashing Guard: Maintains a leak-proof connection between membrane and drain

• Available with poly, aluminum, cast iron, or bronze domes to meet job-specific needs

Specifications:

• Model: ZA-100-4IP-AC-G

• Dome Type: Aluminum

• Connection Size: 4" Threaded (IPS)

• Drain Body Material: Dura-Coated Cast Iron

• Dome Diameter: 15"

• Clamp Type: Angular underdeck clamp (galvanized)

Ideal For:

• Flat and low-slope roofs

• Commercial and institutional buildings

• Concrete deck applications with membrane systems

• Projects requiring long-lasting and corrosion-resistant drainage systems