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ZURNArea Drains

ZURN Floor Drain: 12 1/8 in Overall Dia, 9 1/4 in Grate Size, 4 in Nominal Pipe Size

The ZURN Z520-4NL is a cast-iron area drain with a 12 1/8 in overall diameter, a 9 1/4 in grate size, and a 4 in nominal pipe size. 3G Electric interprets demand for this genuine ZURN product, sourcing it across 14…

SKU 3G-OTH-429836

Also listed as: Z5204NL · Z520 4NL

Brand
ZURN
Item
Floor Drain: 12 1/8 in Overall Dia, 9 1/4 in Grate Size, 4 in Nominal Pipe Size
Category
Area Drains
Available to Order
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ZURN
Manufacturer Part Number
Z520-4NL
Type
Cast Iron
Grate Size
9 1/4 in
Nominal Pipe Size
4 in

Technical Documents

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ZURN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ZURN Z520-4NL is a cast-iron area drain with a 12 1/8 in overall diameter, a 9 1/4 in grate size, and a 4 in nominal pipe size. 3G Electric interprets demand for this genuine ZURN product, sourcing it across 14 industrial departments with specialist depth in pumps and controls.

Frequently Asked Questions

What is the ZURN Z520-4NL floor drain used for?

The ZURN Z520-4NL is a cast iron area drain designed for commercial and industrial floor drainage in applications such as parking garages, loading docks, and mechanical rooms. It handles surface water and wash-down runoff, with a 9 1/4 in grate and 4 in nominal pipe size for high-flow capacity.

What are the specifications of the ZURN Z520-4NL floor drain?

The ZURN Z520-4NL is a cast iron area drain with a 12 1/8 in overall diameter, 9 1/4 in grate size, and 4 in nominal pipe size. The manufacturer part number is Z520-4NL. It is designed for heavy-duty commercial drainage and is supplied by 3G Electric as a global sourcing partner.

Where to buy the ZURN Z520-4NL floor drain worldwide?

You can source the ZURN Z520-4NL floor drain through 3G Electric, which handles full logistics, customs clearance, and delivery to worldwide destinations. As a global industrial equipment distributor since 1990, 3G Electric provides this cast iron area drain for commercial drainage projects. Contact for availability and lead time.

How to install a ZURN Z520-4NL floor drain?

Install the ZURN Z520-4NL by setting the cast iron body into a concrete slab before pouring, ensuring the 4 in pipe connection aligns with the drainage line. Level the grate to finished floor height and seal joints per local plumbing codes. Always follow generic best practices for cast iron drain installation to prevent leaks.

Used in

Common applications for ZURN
Commercial restrooms — ZURN AquaVantage® automatic flush valves (ZER6000AV series) for water-efficient toilet flushing
Institutional kitchens — ZURN cast iron floor drains (ZN415 series) for heavy-duty drainage in food preparation areas
Industrial washdown areas — ZURN height-adjustable PVC floor drains (EZ1 series) for chemical-resistant drainage
Hospital patient rooms — ZURN dome strainers (P1910 series) for floor sink drainage in sanitary environments
Office building maintenance — ZURN chrome-plated brass P-traps (ZR365B-PC) for sink trap replacements
Urinal retrofit projects — ZURN ZTR sensor flush valve retrofit kits (ZTR6203 series) for upgrading manual urinal flush valves

ZURN Products

3G Electric supplies ZURN area drains. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
ZURN Floor Drain: 12 in Overall Dia, 12 1/4 in Grate Size, 4 in Nominal Pipe Size, No Hub, Cast Iron (MPN Z509-4NH)
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