Skip to content
FREE SHIPPING ON ALL ORDERS
FREE SHIPPING ON ALL ORDERS
Click or scroll to zoom
Tap or pinch to zoom
Zurn Z665 - Linear Trench Drain

Zurn Z665 - Linear Trench Drain

Zurn Z665 - Linear Trench Drain

$3,075.77


FREE SHIPPING
SKU Z665-2NL

The Zurn Z665 is a robust cast-iron trench drain designed for demanding commercial, industrial, and institutional applications. Engineered to handle heavy loads and provide reliable surface drainage, this linear system protects floors and surrounding areas from water accumulation and simplifies maintenance in high-use environments.

Key Features

  • Solid Cast-Iron Construction: Engineered for durability and structural integrity, the Z665 is built to withstand rigorous conditions, corrosive environments, and frequent usage.

  • Integrated Bottom Outlet & Modular Strainer: Each module includes a bottom outlet and a strainer or grate saddle to promote efficient water flow and prevent clogs.

  • Heavy-Duty Grate Design: Heel-proof and traffic-rated grates resist damage under load while allowing easy removal for inspection and cleaning.

Downloads:

Product Codes: Z665-2IC, Z665-3IC, Z665-4IC, Z665-5IC, Z665-6IC, Z665-2IG, Z665-3IG, Z665-4IG, Z665-6IG, Z665-2IP, Z665-3IP, Z665-4IP, Z665-5IP, Z665-6IP, Z665-2NH, Z665-3NH, Z665-4NH, Z665-5NH, Z665-6NH, Z665-2NL, Z665-3NL, Z665-4NL, Z665-5NL, Z665-6NL, ZB665-2IC, ZB665-3IC, ZB665-4IC, ZB665-5IC, ZB665-6IC, ZB665-2IG, ZB665-3IG, ZB665-4IG, ZB665-6IG, ZB665-2IP, ZB665-3IP, ZB665-4IP, ZB665-5IP, ZB665-6IP, ZB665-2NH, ZB665-3NH, ZB665-4NH, ZB665-5NH, ZB665-6NH, ZB665-2NL, ZB665-3NL, ZB665-4NL, ZB665-5NL, ZB665-6NL, ZN665-2IC, ZN665-3IC, ZN665-4IC, ZN665-5IC, ZN665-6IC, ZN665-2IG, ZN665-3IG, ZN665-4IG, ZN665-6IG, ZN665-2IP, ZN665-3IP, ZN665-4IP, ZN665-5IP, ZN665-6IP, ZN665-2NH, ZN665-3NH, ZN665-4NH, ZN665-5NH, ZN665-6NH, ZN665-2NL, ZN665-3NL, ZN665-4NL, ZN665-5NL, ZN665-6NL,

Frequently Asked Questions

View Our Full Selection of Zurn Drains →

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.
NDS-Transit-Map_6d8f0af4-e4db-4159-a7a4-4ca8b8ba8710.gif__PID:713ed80e-353f-4d48-9ae6-2b8b0e0a3d58

Zurn Z665 – Heavy-Duty Cast-Iron Modular Trench Drain

The Z665 is Zurn’s 12"-wide heavy-duty modular trench drain designed for continuous surface drainage across plazas, retail promenades, loading zones, and parking structures. A deep-sump cast-iron body, bolt-down slotted grate, and project-friendly accessories deliver performance from install to maintenance.

Technical overview: Z665 uses Dura-Coated cast-iron channel sections with an integral seepage pan, deep sump, and bottom outlet, supplied with a heavy-duty loose slotted grate. It’s a tough linear drain that captures sheet flow, keeps walkways drier, and stands up to daily traffic.

Pedestrians walking over a cast-iron trench drain in a plaza
Z665 in hardscape — continuous capture along walk paths

Key Features

  • 12"-wide modular channels — create straight runs with consistent elevations and slope.
  • Deep-sump body — increases debris capacity and helps reduce carry-over to piping.
  • Heavy-duty slotted grate — bolt-down design supports security and stable seating.
  • Integral seepage pan — coordinates with waterproofing to manage moisture at the slab.
  • Bottom outlet — tie directly to branch drainage; sizes and connections per schedule.

Where Z665 Excels

Specify Z665 for pedestrian plazas, storefront aprons, parking decks, dock aprons, and campus concourses. Linear capture along façades and joints minimizes ponding, improves slip resistance, and reduces freeze-thaw spalling.

Benefits

  • Cleaner hardscapes — intercepts runoff before it spreads across walking/drive areas.
  • Faster installs — modular sections and anchor lugs streamline layout and pours.
  • Predictable maintenance — slotted grate access and open channel make debris removal straightforward.
Zurn Z665 cast-iron trench drain—product view
Z665 – Heavy-Duty cast-iron channel & grate
Zurn Z665 trench drain—dimensional schematic
Z665 – Dimensional & component schematic

Specifications at a Glance

System: 12"-wide heavy-duty modular trench drain

Body: Dura-Coated cast iron, deep-sump with bottom outlet

Grate: Heavy-duty slotted, bolt-down (patterns per spec)

Accessories: Integral seepage pan; end/outlet components

Applications: Plazas, parking structures, loading zones, concourses

Load Rating: Project dependent—confirm on submittal

Confirm grate style/opening, coating, outlet size/type, and load class to match civil and architectural plans.

Installation Highlights

1) Base & Alignment

Prepare a stable base, stringline the run, and set channel elevations for design slope or level grade.

2) Anchor & Pour

Use channel anchor lugs/bracing to resist buoyancy during the pour; protect grate ledges from concrete.

3) Finish & Commission

Install slotted grates with specified hardware, torque per manufacturer, and verify watertight outlet connections.

Case Study: Retail Streetscape Upgrade

A suburban lifestyle center replaced spot drains with Z665 runs along storefronts and curb lines. The deep-sump channels and slotted grates reduced ponding incidents by ~50% during summer storms. Maintenance crews reported faster post-event cleanouts thanks to direct access through the bolt-down grates.

Frequently Asked Questions

How is Z665 different from Z667?
Z665 is a 12" heavy-duty modular trench drain with a deep-sump body. Z667 is a 6" medium-duty sectional system. Choose based on required width and load class.
Which grate should I specify?
Select slotted grate openings and thickness to match traffic/loading and debris profile. Consider heel-resistant patterns for pedestrian zones and higher-open-area options for debris-prone sites.
Can Z665 connect to trap primers or cleanouts?
Trench drains typically tie directly to the storm system; coordinate any cleanout tees or upstream sediment basins per civil drawings. Verify accessories on the Zurn submittal.