Zurn Z556 / ZN556 – 8" Adjustable Heavy-Duty Floor Drain

Product Overview

The Zurn Z556 Adjustable Heavy-Duty Drain is engineered for commercial and industrial applications requiring durable, long-lasting floor drainage. Constructed from Dura-Coated cast iron, the Z556 includes a bottom outlet, seepage pan, and an adjustable flashing clamp and frame. Its heavy-duty slotted grate resists tilt and shifting, ensuring reliable performance in high-traffic environments. The ZN556 model adds a polished nickel bronze top for enhanced architectural appeal.

Features & Benefits

• Heavy-duty adjustable design supports precise installation height.
• Dura-Coated cast iron body for maximum durability and corrosion resistance.
• Anti-tilt heavy-duty slotted grate for secure, stable performance.
• Multiple outlet connection types: IP Threaded, No-Hub, and Neo-Loc.
• Optional polished nickel bronze top (ZN556) for high-end finishes.

Specifications

• Top Diameter: 8" (203 mm)
• Height Range: 2-3/8" (60 mm) to 3-1/8" (79 mm)
• Material: Dura-Coated Cast Iron
• Grate Open Area: 11 sq. in. (71 cm²)
• Available Sizes: 2", 3", 4"
• Connection Types: IP Threaded, No-Hub, Neo-Loc
• Finish Options: Z556 Cast Iron, ZN556 Nickel Bronze

Installation Tips

• Set the adjustable frame height before the finishing material is installed.
• Select the correct outlet connection type for your piping system.
• Ensure the membrane flashing clamp is fully compressed to prevent seepage.
• Avoid abrasive cleaners on nickel bronze finishes.

FAQs

Q: Is the Z556 suitable for heavy-traffic commercial environments?
A: Yes, its heavy-duty grate and cast iron body are designed for industrial use.

Q: What is the main difference between Z556 and ZN556?
A: ZN556 includes a polished nickel bronze grate and frame.

Q: Can I adjust the height after the concrete has cured?
A: No, height adjustments must be made during installation.

Q: Which outlet type should I choose?
A: IP for threaded systems, NH for no-hub, NL for push-fit.

Q: Does it include a sediment bucket?
A: No, the Z556 is not designed for use with a bucket.