Zurn Z161 / ZAB161 / ZN161 Oblique Scupper Drain – 3" x 10"

Product Overview

The Zurn Z161 Series Oblique Scupper Drain is engineered for reliable secondary roof drainage where controlled water discharge through parapet walls is required. Designed with a 3" x 10" oblique outlet, this scupper drain efficiently channels excess roof water away from the building envelope to prevent ponding and structural damage.

Manufactured with a durable bronze body and paired with a bronze or nickel bronze grate, the Z161 Series offers excellent corrosion resistance for long-term performance in exposed rooftop environments. An integral membrane clamp and gasket provide a secure, watertight seal, making this scupper drain ideal for commercial, institutional, and industrial roofing applications.

Features & Benefits

• Oblique scupper design for efficient sidewall roof drainage
• Durable bronze body resists corrosion and weather exposure
• Integral membrane clamp ensures watertight installation
• Includes gasket for secure roof membrane sealing
• Bronze or nickel bronze grate options for architectural finishes
• Designed for secondary (overflow) roof drainage applications

Specifications

• Manufacturer: Zurn
• Series: Z161
• Product Type: Oblique Scupper Roof Drain
• Outlet Size: 3" x 10" (75 mm x 254 mm)
• Connection Sizes: 2", 3"
• Connection Type: Threaded
• Body Material: Bronze
• Grate Material: Bronze or Nickel Bronze
• Membrane Clamp: Integral
• Gasket: Included

Installation Tips

• Install as a secondary drainage system per local code requirements
• Ensure roof membrane is properly sealed with the integral clamp
• Confirm correct outlet size prior to installation
• Slope roof surface toward the scupper for optimal performance

FAQs

Q: What is an oblique scupper drain used for?
A: It provides secondary roof drainage through parapet walls to prevent roof flooding.

Q: What finishes are available?
A: Plain bronze, polished bronze, and nickel bronze.

Q: Is this suitable for primary drainage?
A: No, it is designed for secondary or overflow drainage.

Q: Does it include a membrane clamp?
A: Yes, an integral membrane clamp and gasket are included.

Q: What connection sizes are available?
A: 2" and 3" threaded connections.