RACO 890 Flat Concrete Ring Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.00
RACO 890 Flat Concrete Ring Cover with Three 1/2 in. and Two 3/4 in. KO's

RACO 890 Flat Concrete Ring Cover with Three 1/2 in. and Two 3/4 in. KO's

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Model: RACO890

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

$2.00
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RACO 890 Flat Concrete Ring Cover with Three 1/2 in. and Two 3/4 in. KO's

The RACO 890 is a flat concrete ring cover engineered to close out in-ground and at-grade electrical enclosures while keeping conduit entry points organized. This cover measures 4-1/2 in. dia. O.D. and is pre-punched with three 1/2 in. and two 3/4 in. knockouts (KO's), giving installers flexibility to route multiple conduit runs from a single access point. Like other RACO enclosure covers, the 890 is UL Listed, making it a dependable choice for code-compliant concrete ring installations in commercial and residential electrical systems.

Key Features

  • Trade Size / Diameter: 4-1/2 in. dia. O.D., sized to fit standard concrete ring housings for a clean, secure seat over the opening.
  • Knockout Configuration: Three 1/2 in. and two 3/4 in. KO's pre-formed into the cover for straightforward conduit entry without additional drilling.
  • Flat Profile: Low-profile flat design sits nearly flush with the surrounding concrete ring for a neat, finished appearance at grade.
  • Multi-Conduit Ready: Five total knockouts across two sizes allow multiple circuits or conduit runs to terminate at the same concrete ring location.
  • Listing: UL Listed for use in code-compliant electrical installations.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Product Type: Cover
  • Diameter (O.D.): 4-1/2 in.
  • Knockouts: Three 1/2 in. and Two 3/4 in.
  • Profile: Flat
  • Certified Listed: UL Listed

Typical Applications

  • Underground and At-Grade Concrete Ring Enclosures
  • Pedestal and Ground-Level Electrical Box Covers
  • Site Lighting and Landscape Electrical Access Points
  • Commercial and Residential Conduit Termination Points
  • New Construction and Retrofit Concrete Ring Installations

Why RACO?

RACO enclosure products are built to deliver dependable, code-compliant performance for electrical professionals working on concrete ring and in-ground installations. The 890's UL Listed construction, flat low-profile design, and pre-punched 1/2 in. and 3/4 in. knockout pattern make it a practical, ready-to-install cover for jobs that demand multiple conduit entries in a compact 4-1/2 in. footprint. Choose RACO for consistent quality on your next concrete ring electrical installation.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
RACO-20260916
Product Type:
Concrete Box Cover
Certified Listed:
UL Listed
Department:
Electrical
Product Subgroup:
Box Covers
Product Group:
Boxes & Enclosures

RACO RACO890 – Frequently Asked Questions

1) Will the RACO 890 cover fit a 4 inch round concrete ring?
The RACO 890 is a flat round cover measuring 4-1/2 in. dia. O.D., sized to seat over standard concrete ring housings. That outside diameter is the number to check against your ring: it overlaps the opening rather than dropping inside it, so measure the ring's opening and seating surface before ordering.
2) How many conduit entries does the RACO 890 concrete ring cover have, and what sizes?
Five knockouts total: three at 1/2 in. and two at 3/4 in. That lets you bring multiple conduit runs or circuits into the same ring location without drilling the cover. If your job needs more than two 3/4 in. runs, this knockout pattern won't do it.
3) What is the difference between the RACO 890 and the Mulberry 11700 cover?
The RACO 890 is a flat concrete ring cover, 4-1/2 in. dia. O.D., pre-punched with three 1/2 in. and two 3/4 in. knockouts so multiple conduit runs can terminate at one concrete ring location. The Mulberry 11700 is a galvanized steel oval/round blank cover from the F-35 Series, sized 3/4-inch. The 890 gives you factory conduit entries; the 11700 is a blank face, so conduit entry would have to come from elsewhere in the assembly.
4) Can I use a flat concrete ring cover at grade for site lighting access?
That is one of the uses the 890 is intended for. Its flat low-profile design sits nearly flush with the surrounding concrete ring, which suits at-grade and in-ground enclosures, pedestal and ground-level boxes, and site lighting or landscape electrical access points. The pre-punched 1/2 in. and 3/4 in. knockouts handle the conduit coming into that access point.
5) I need a blank cover with no knockouts instead. What should I use?
The 890 is pre-punched with five knockouts, so it is the wrong choice if you want a sealed blank. For a blank closure of this type, the Mulberry 11700 is an F-35 Series galvanized steel oval/round blank cover. Choose the 890 only when you actually want conduit entries in the cover.
6) Is the Mulberry 11700 a drop-in replacement for the RACO 890?
Treat them as different parts rather than interchangeable. The RACO 890 is a 4-1/2 in. dia. O.D. flat concrete ring cover with three 1/2 in. and two 3/4 in. knockouts and is UL Listed. The Mulberry 11700 is a 3/4-inch galvanized steel oval/round blank cover in the F-35 Series. The diameter and the knockout pattern are what decide the fit, so confirm the ring opening you are closing before swapping one for the other.
7) What is the correct part number to order for the RACO flat concrete ring cover with 1/2 and 3/4 inch knockouts?
Order RACO model 890. One model covers it, with the three 1/2 in. and two 3/4 in. knockout pattern and the 4-1/2 in. O.D. already set, so there is no finish or size option to specify.
8) Do I need to drill the RACO 890 cover for conduit, or is it ready to install?
No drilling. The 1/2 in. and 3/4 in. openings are pre-formed knockouts, so you punch out only the ones you need and leave the rest closed. For a retrofit on an existing concrete ring, that means less field work at an opening that is often awkward to reach.
How fast can I get the RACO RACO890 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 RACO RACO890 come with a warranty?
Absolutely. The RACO RACO890 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 RACO RACO890?
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 RACO RACO890 from ZenSupply?
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