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Zurn Z508 - 9" Extra-Heavy-Duty Drain

Zurn Z508 - 9" Extra-Heavy-Duty Drain

Zurn Z508 - 9" Extra-Heavy-Duty Drain

$1,058.20


FREE SHIPPING
SKU Z509-2NH

The Zurn Z508 is a heavy-duty area drain built to manage substantial surface water in demanding environments. Engineered for high flow capacity, strength, and long-term reliability, it’s ideal for use in streetscapes, plazas, parking decks, loading docks, and industrial floor systems where runoff must be handled efficiently without compromise.

Key Features

  • Robust Construction — Built with a durable, corrosion-resistant body designed to endure mechanical loads, weather exposure, and extended service life.

  • Traffic-Rated Grate — Equipped with a load-bearing grate capable of supporting pedestrian or vehicular traffic while maintaining high water intake.

  • Flexible Outlets & Sealing Options — Compatible with multiple outlet configurations and includes features or interfaces for integration with waterproofing membranes, paving systems, or surface finishes.

Downloads:

Product Codes: Z508-2IC, Z508-3IC, Z508-4IC, Z508-2IG, Z508-3IG, Z508-4IG, Z508-2IP, Z508-3IP, Z508-4IP, Z508-2NH, Z508-3NH, Z508-4NH, Z508-6NH, Z508-2NL, Z508-3NL, Z508-4NL, ZB508-2IC, ZB508-3IC, ZB508-4IC, ZB508-2IG, ZB508-3IG, ZB508-4IG, ZB508-2IP, ZB508-3IP, ZB508-4IP, ZB508-2NH, ZB508-3NH, ZB508-4NH, ZB508-6NH, ZB508-2NL, ZB508-3NL, ZB508-4NL, ZN508-2IC, ZN508-3IC, ZN508-4IC, ZN508-2IG, ZN508-3IG, ZN508-4IG, ZN508-2IP, ZN508-3IP, ZN508-4IP, ZN508-2NH, ZN508-3NH, ZN508-4NH, ZN508-6NH, ZN508-2NL, ZN508-3NL, ZN508-4NL,

Frequently Asked Questions

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Shipping

  • All items ship for free (standard ground, see map)
  • Call: (800) 604-5537 for pricing and shipping questions. Shipping estimates shown on the map pertain to this specific product only.
  • Orders typically ship in 1-3 business days. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.
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Zurn Z508 – 9" Extra-Heavy-Duty Drain

A 9" diameter, extra-heavy-duty area drain with a Dura-Coated cast-iron body, bottom outlet, seepage pan, and a combination membrane flashing clamp & frame—topped by an extra-heavy-duty slotted grate for high-traffic hardscapes.

In technical terms, the Z508 integrates waterproofing via a clamp/frame and seepage pan and is furnished for extra-heavy-duty loading. In plain English: it’s a tough point drain that ties cleanly into membranes, stands up to carts and wheel loads, and simplifies maintenance in debris-prone areas.

Zurn Z508 components schematic: extra-heavy-duty slotted grate, clamp/frame, seepage pan, cast-iron body
Z508 – Components & Assembly Overview

Key Features

  • 9" round top with extra-heavy-duty slotted grate for reliable inflow under traffic.
  • Dura-Coated cast-iron body with bottom outlet for long service life.
  • Seepage pan + combination flashing clamp & frame for clean waterproofing tie-in.
  • Debris control: commonly paired with a sediment bucket (verify furnish; specify -Y where needed).
  • Outlet families: No-Hub (NH), Neo-Loc (NL), Threaded (IP); Inside Caulk/Gasket (IC/IG) available on select builds.
  • Typical pipe sizes: 2", 3", 4", and 6" (by outlet type).
  • Open area (typ.): about 18–20 in² per grate style (confirm on submittal).

Where Z508 Excels

Specify Z508 for parking decks, ramps, loading areas, service courts, and industrial slabs where impact resistance, membrane integration, and fast draw-down matter. The extra-heavy-duty grate resists rocking and damage, while the deep flange/clamp detail protects the waterproofing layer.

Options & Finishes (Snapshot)

  • -DG Duresist ductile-iron grate for higher strength; -G galvanized; -AR acid-resist epoxy.
  • -TS top secured; -VP vandal-proof hardware.
  • -Y sediment bucket; -P trap-primer connection; -TC Neo-Loc test cap (for NL outlets).
  • Top finishes (prefix): Z (cast iron), ZB (polished bronze), ZN (polished nickel-bronze).
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Zurn – Engineered Drainage for Demanding Sites
Zurn Z508 dimensional schematic: 9-inch top, clamp/frame, seepage pan, bottom outlet
Z508 – Dimensional Schematic

Specifications at a Glance

Top: 9" round, extra-heavy-duty slotted grate

Body: Dura-Coated cast iron; bottom outlet

Waterproofing: Seepage pan + combination flashing clamp & frame

Debris: Sediment bucket available/furnished per configuration

Outlets: NH / NL / IP (IC/IG on select builds), 2"–6" (by outlet)

Finish prefixes: Z (CI), ZB (PB), ZN (PNB)

Always confirm final dimensions, load rating, open area, outlet availability, and furnish on the project submittal.

Installation Highlights

1) Set & Anchor

Place the body at rough elevation; anchor per detail; verify positive slope to the drain across slab or paver bed.

2) Membrane Tie-In

Integrate the seepage pan and clamp/frame with the waterproofing; protect the assembly during pours or overlays.

3) Commission & Maintain

Install/secure the grate; add a -Y sediment bucket near landscaping or grit sources; schedule pre-storm clean-outs.

Case Study: Ramp Ponding on a Parking Deck

A municipal parking deck had chronic ponding at slope transitions. Replacing standard drains with Zurn Z508 (4" No-Hub outlets, -DG ductile-iron grates, -TS secured tops) increased impact resistance and reduced grate rocking. Adding -Y buckets at planters captured seasonal grit. Outcome: faster draw-down during storms and fewer downstream jetting calls across the rainy season.

Frequently Asked Questions

What makes the Z508 “extra-heavy-duty”?
The grate and body are engineered for high impact and frequent wheel loads. Pairing with a -DG Duresist grate further increases strength for demanding locations.
Which outlet should I specify?
Match your system: NH (No-Hub) for cast-iron, NL (Neo-Loc) for compression fit, IP (Threaded) for steel; some builds offer IC/IG. Typical sizes are 2", 3", 4", or 6" depending on the outlet family.
Is a sediment bucket included?
Many configurations furnish a bucket or allow it as option -Y. Verify furnish on your submittal, especially near landscaping or sanding/grit sources.