Zurn Z125 8-3/8" Roof Drain with Low Silhouette Dome

Product Overview

The Zurn Z125 Roof Drain is designed for efficient water removal on flat and low-slope commercial roof systems. Featuring an 8-3/8" diameter Dura-Coated cast iron body, this drain provides long-term durability and corrosion resistance. A combination membrane flashing clamp and gravel guard ensure secure membrane integration and debris protection, while the low silhouette dome improves drainage performance without excessive height.

Features & Benefits

• Low silhouette dome design minimizes rooftop obstruction
• Dura-Coated cast iron body for long-term durability
• Combination membrane flashing clamp for watertight sealing
• Integrated gravel guard helps prevent debris blockage
• Available with poly, aluminum, or cast iron dome options

Specifications

• Model: Zurn Z125
• Body Diameter: 8-3/8" (213 mm)
• Body Material: Dura-Coated Cast Iron
• Dome Options: Poly, Aluminum, or Cast Iron
• Dome Height: 4-1/4" (poly & aluminum)
• Connection Sizes: 2", 3", 4"
• Connection Type: No-Hub

Installation Tips

• Tighten membrane flashing clamp evenly for a watertight seal.
• Select dome material based on exposure and durability needs.
• Confirm No-Hub coupling compatibility with pipe size.
• Inspect dome and gravel guard regularly to prevent debris buildup.

FAQs

Q1: What is the advantage of the low silhouette dome?
It improves drainage efficiency while keeping the overall profile low.

Q2: Are multiple dome materials available?
Yes, poly, aluminum, and cast iron domes are available.

Q3: Does it include membrane flashing?
Yes, a combination membrane flashing clamp is included.

Q4: What pipe sizes are supported?
2", 3", and 4".

Q5: Is this suitable for commercial roofs?
Yes, it is designed for commercial and institutional roof installations.