IPEX 029559 Vertical-Lok Inter...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.82
IPEX 029559 Vertical-Lok Intermediate Spacer, 4" x 3" ABS Super Duct

IPEX 029559 Vertical-Lok Intermediate Spacer, 4" x 3" ABS Super Duct

(No reviews yet) Write a Review

Model: 029559

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.82
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

IPEX 029559 Vertical-Lok Intermediate Spacer, 4" x 3" ABS Super Duct

The IPEX 029559 is a 4" x 3" Intermediate Vertical Lok spacer engineered for Super Duct concrete-encased duct bank installations. Molded from durable black ABS, this spacer provides uniform separation between rows and columns of duct and conduit, and when assembled with other Vertical Lok spacers it creates a stable, interlocking structure that holds duct runs in place while concrete is poured. The spacers slide together horizontally and snap together vertically using a snap-fit connection type, allowing crews to quickly build out a duct bank at the correct spacing and alignment without additional hardware.

Key Features

  • Trade Size: Sized for 4" and 3" duct/conduit runs, allowing mixed-diameter rows within the same duct bank.
  • Durable Construction: Molded from black ABS for a rigid, corrosion-resistant spacer that withstands the concrete pour without deforming.
  • Snap-Fit Connection: Spacers slide together horizontally and snap together vertically for fast, tool-free assembly into a complete duct bank grid.
  • Innovative Trench-Ready Design: The interlocking design adapts to the contours of a trench, helping maintain consistent spacing even in uneven excavations.
  • Molded Rebar Slots: Built-in rebar slots allow fast, drop-in installation of full-length rebar for reinforced duct bank structures.
  • Mixed-Size Grouping: Different sized spacers can be grouped together to build the exact width of duct bank required for the job.
  • NAFTA Compliant: Manufactured to meet NAFTA sourcing requirements.

Technical Specifications

  • Diameter1: 4"
  • Diameter2 Imperial: 3"
  • Material: ABS
  • Color: Black
  • Connection Type: Snap Fit
  • NAFTA: Yes
  • Base Quantity Metric: 1.000
  • Packaging: 18 Cartons - CTP10

Typical Applications

  • Concrete-Encased Electrical Duct Banks
  • Underground Conduit Runs for Utility and Communications Systems
  • Multi-Duct Trench Installations Requiring Consistent Spacing
  • Commercial and Industrial Underground Infrastructure Projects
  • Rebar-Reinforced Duct Bank Construction

Why IPEX?

IPEX's Vertical Lok spacer system is purpose-built for the demands of concrete duct bank construction, combining a rugged ABS build with an interlocking, snap-fit design that speeds installation while keeping duct and conduit precisely aligned. The molded rebar slots and trench-adapting geometry reflect a design focused on real jobsite conditions, helping crews assemble stable, code-compliant duct bank structures with less labor. For contractors building underground electrical and communications infrastructure, the IPEX 029559 delivers a reliable, easy-to-assemble spacing solution backed by NAFTA-compliant manufacturing.

Manufacturer Resources

Spec Sheet

Product Specs

Diameter1:
4"
Base Quantity Metric:
1.000
NAFTA:
Yes
Diameter2 Imperial:
3"
Connection Type:
SNAP FIT
list_batch:
IPE-20260924
Product Type:
Duct Spacer
Department:
Electrical
Product Subgroup:
PVC Conduit & Fittings
Product Material:
ABS
Product Color:
BLACK
Product Size:
4"x3"
Product Group:
Conduit & Raceway

IPEX 029559 – Frequently Asked Questions

1) What duct sizes does the IPEX 029559 Vertical-Lok spacer hold?
The 029559 is a 4 inch by 3 inch intermediate spacer, so it carries 4 inch duct on one dimension and 3 inch on the other. That lets you run mixed diameters in the same duct bank rather than committing the whole bank to one trade size.
2) Do I need clips, bolts or tie wire to assemble Vertical-Lok duct bank spacers?
No extra hardware. Vertical-Lok spacers use a snap-fit connection: they slide together horizontally and snap together vertically, so a crew builds the grid tool-free. You still need rebar if the bank is reinforced, and that drops into the molded rebar slots.
3) Is an intermediate spacer the same as a base spacer for a duct bank?
No. The 029559 is the intermediate unit, meaning it stacks between rows and columns to set uniform separation as the bank grows upward. A base spacer is what sits on the trench bottom and establishes the first row elevation. Build with bases at the bottom and intermediates above them.
4) Will ABS spacers hold up under a concrete pour?
The 029559 is molded from black ABS, chosen to stay rigid and corrosion resistant through a concrete-encased pour without deforming. That is the point of the interlocking grid: it holds the duct run in alignment while the concrete goes in.
5) Can I use these spacers in an uneven trench bottom?
Yes. The interlocking Vertical-Lok geometry adapts to trench contours, so spacing between ducts stays consistent even where the excavation is not flat. The grid is what sets the spacing, not the trench floor.
6) How do I build a wider duct bank than one spacer covers?
Group spacers side by side. Different sized Vertical-Lok spacers can be assembled together, so you combine units to reach the exact bank width the drawing calls for, and the 4 inch by 3 inch 029559 covers mixed 4 inch and 3 inch rows within that group.
7) Can rebar be run through the IPEX 029559 spacer?
Yes. Molded rebar slots let full-length rebar drop straight in, so a reinforced duct bank gets assembled without drilling or field-modifying the spacers.
8) Is the IPEX 029559 spacer NAFTA compliant for a public project?
Yes, the 029559 is manufactured to meet NAFTA sourcing requirements, which is the sourcing declaration most government and utility duct bank specs ask for.
How fast can I get the IPEX 029559 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the IPEX 029559 come with a warranty?
Absolutely. The IPEX 029559 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the IPEX 029559?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the IPEX 029559 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!