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Zurn Z884 - 4-3/4" Wide Shallow Linear Trench Drain System

$269.49


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SKU Z884

 The Zurn Z884 is a decorative linear trench drain designed to combine effective water management with aesthetic appeal. Ideal for applications like plazas, walkways, patios, or architectural hardscapes, this system offers a sleek profile and modular components that help integrate drainage into the design rather than letting it dominate. The unit is engineered for durability, ease of installation, and alignment in poured concrete or masonry settings.

Key Features

  • Modular HDPE trench channel sections with decorative grates

  • Interlocking channel joints for alignment and continuity

  • Integral rebar clips for stable elevation control during installation

  • UV-stabilized materials suitable for outdoor exposure

  • Available configurations to match aesthetic and hydraulic requirements

Note: Zurn trench drain products are subject to a $750 minimum order.


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Zurn Z884 Shallow Linear Trench Drain — Complete Specifier’s Guide

Zurn Z884 Shallow Linear Trench Drain — An Overview

The Zurn Z884 is a 4-3/4" wide, shallow-profile linear trench drain designed for plazas, walkways, pool decks, patios, and other hardscapes that need effective surface water control without bulky footprints. This guide covers how it’s built, where it performs best, selection tips, installation basics, and a short case study you can reference in submittals.

At-a-Glance Specifications

System Width: 4-3/4" nominal (channel accepts ~4-1/8" grates)

Channel Depth: Shallow (~3" nominal); neutral (non-sloped) run

Module Length: 40" interlocking channel sections

Channel Body: Lightweight HDPE/PP with mechanical interlocks & rebar clips

Grates (Load Class): HDPE heel-proof (Class A), cast iron slotted (Class B), galvanized & stainless options

Typical Uses: Pool decks, patios, pedestrian plazas, light-duty access

Zurn Z884 shallow linear trench drain — channel and grate diagram
Zurn Z884 channel & grate concept diagram

How the Z884 Is Built

Z884 channels are molded from durable, lightweight polymer and connect via mechanical interlocks for alignment. Integral rebar clips help set elevation and stabilize the run during the pour. A shallow depth profile solves slab or utility conflicts, while the neutral (non-sloped) layout keeps planning straightforward for short to moderate runs.

Grate families include heel-proof HDPE (Class A) for pedestrian areas and cast iron slotted (Class B) where medium duty is needed. Galvanized and stainless options are commonly available for corrosion resistance or aesthetics.

Zurn Z884 used along a swimming pool deck edge
Pool decks & patios: discreet drainage without bulky trenches

Where Z884 Fits Best (and When to Pick Another System)

  • Ideal: Pedestrian hardscapes (plazas, patios, courtyards), pool decks, building entries, and depth-restricted retrofits.
  • Traffic Limits: For light to medium duty—confirm grate load class and site loading. Step up to heavier trench systems for frequent vehicle loads.
  • Aesthetics: Decorative patterns, bronze/cast-iron options, and neutral runs help integrate drainage without dominating the design.

For reliable flow, provide adequate inlets/outlets, match grate open area to design storms, and avoid long flat runs where debris may accumulate. Use cleanouts at logical intervals and where the run changes direction.

Zurn Z884 installation schematic showing trench, rebar clips, and concrete encasement
Installation schematic with interlocking channels & rebar support

Installation Snapshot

  1. Layout & Slope: Establish runoff path and outlet points; provide slab or subgrade slope toward the drain.
  2. Excavate & Base: Excavate to thickness; proof-roll and install compacted base as required by the slab design.
  3. Set Channels: Interlock 40" channels, use rebar clips for elevation, and brace the frame width during pour.
  4. Encasement: Place concrete to manufacturer’s envelope; vibrate to eliminate voids around the channel.
  5. Finish: Install grates, hardware, end caps/outlets, and sealant as specified; confirm grate class vs. loading.

Always follow Zurn’s official specification and installation instructions for submittals, reinforcement, joint treatment, pour sequencing, and safety.

Selection Tips: Grates, Inlets & Outlets

  • Pedestrian priority: Heel-proof/ADA grates (Class A) in HDPE or stainless; pick colors or finishes to match the hardscape palette.
  • Medium duty: Use Class B cast iron slotted grates in loading zones with occasional vehicles (verify site loads).
  • Corrosion & appearance: Galvanized or stainless steel where de-icing salts or chlorinated water are present; bronze/cast-iron for decorative accents.
  • Hydraulics: Shorten run lengths or add outlets where ponding is unacceptable; maintain accessible cleanouts.

Case Study — Pool-Deck Renovation with Depth Constraints

A recreation center needed to replace failing deck drains around a lap pool without raising door thresholds or thickening the slab. The design team selected the Z884 for its shallow channel, neutral layout, and choice of heel-proof, Class A grates compatible with wet-barefoot areas.

  • Challenge: Limited slab depth over utilities; previous drains telegraphed cracks at joints.
  • Solution: Z884 channels pinned with integral rebar clips and mechanically interlocked to control alignment; stainless hardware and HDPE heel-proof grates specified for corrosion resistance and comfort.
  • Outcome: Continuous edge drainage eliminated splash-back puddling at doorways; maintenance staff report faster squeegee cleanups and fewer debris clogs after installing cleanouts at logical intervals.

Specs & Downloads

Include these in your submittal package:
Zurn Z884 Specification Sheet (PDF)
Zurn Z884 Installation Instructions (PDF)

Frequently Asked Questions

What are the Z884 grate options and load classes?

Common options include HDPE heel-proof (Class A) for pedestrian areas, cast iron slotted (Class B) for medium duty, plus galvanized and stainless selections. Always match the grate’s load class to the anticipated live loads.

How long are the channels and how do they connect?

Standard channels are 40" long and connect with mechanical interlocks to maintain alignment and minimize joint gaps during placement and the concrete pour.

Can I use Z884 near pools or on retrofit patios with limited depth?

Yes. The system’s shallow profile is well-suited to pool decks and depth-restricted retrofits, provided you select appropriate grates and follow the installation envelope in the manufacturer’s instructions.

Any installation tips to prevent channel distortion during the pour?

Brace the frame opening to maintain width, use the integral rebar clips to hold elevation, and vibrate the concrete to remove voids around the channel per the installation manual.