Zurn Z181 / ZRB181 / ZB181 / ZN181 Cornice Roof Drain – 6" Diameter x 2" High

Product Overview

The Zurn Z181 Series Cornice Drain is designed for efficient roof drainage at gutters, roof edges, and small roof areas where space constraints require a compact yet durable solution. With a 6" diameter and low-profile 2" height, this cornice drain delivers dependable performance while maintaining a clean architectural appearance.

Constructed with a Dura-Coated cast iron body, the Z181 Series provides excellent corrosion resistance in exposed environments. Bronze, polished bronze, or polished nickel bronze dome options help prevent debris entry while enhancing aesthetics. An integral membrane flashing clamp ensures a secure, watertight seal with roofing membranes.

Features & Benefits

• 6" diameter cornice drain with compact 2" height
• Ideal for gutters, roof edges, and small roof areas
• Dura-Coated cast iron body resists corrosion
• Bronze, polished bronze, or nickel bronze dome options
• Integral membrane flashing clamp for watertight installation
• Bottom outlet for efficient drainage

Specifications

• Manufacturer: Zurn
• Series: Z181
• Product Type: Cornice Roof Drain
• Drain Diameter: 6" (152 mm)
• Drain Height: 2" (51 mm)
• Outlet Type: Bottom Outlet
• Connection Sizes: 3", 4"
• Connection Types: IP Threaded, NH No-Hub (with adapter)
• Body Material: Dura-Coated Cast Iron
• Dome Material: Bronze, Polished Bronze, or Polished Nickel Bronze

Installation Tips

• Confirm correct connection size before installation
• Use IP-to-NH adapter for no-hub installations
• Secure roof membrane with the integral flashing clamp
• Install per local plumbing and building codes

FAQs

Q: Where is the Zurn Z181 used?
A: It is commonly installed in gutters, roof edges, and small roof drainage areas.

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

Q: Is a membrane clamp included?
A: Yes, an integral membrane flashing clamp is included.

Q: What connection types are supported?
A: IP threaded and NH no-hub connections.

Q: Is this drain suitable for commercial buildings?
A: Yes, it is designed for commercial and institutional use.