Kraloy PVC Reducing Bushing...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.73
Kraloy PVC Reducing Bushing

Kraloy PVC Reducing Bushing

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Model: 78359

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

$25.73
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Kraloy MR4030 4" x 3" PVC Reducing Bushing

The Kraloy MR4030 is a rigid PVC reducing bushing designed to transition electrical conduit runs from a 4" trade size down to a 3" trade size within rigid PVC conduit systems. Molded from rigid PVC, this reducing bushing gives electrical contractors a dependable, corrosion-resistant way to step down conduit diameter at enclosures, boxes, and other transition points without introducing dissimilar materials into an all-PVC raceway. The 4" x 3" reducing configuration is sized to mate cleanly with standard rigid PVC conduit, helping maintain a smooth, continuous pathway for conductors as the conduit run changes size. Kraloy engineers this bushing as part of its broader line of rigid PVC conduit fittings used across commercial, industrial, and residential electrical installations.

Key Features

  • Trade Size: 4" x 3" reducing bushing built to transition conduit runs from a 4" trade size to a 3" trade size within rigid PVC conduit systems.
  • Durable Rigid PVC Construction: Molded from rigid PVC for corrosion resistance, chemical resistance, and long service life in demanding electrical environments.
  • Reducing Bushing Design: Purpose-built to step conduit diameter down from 4" to 3", helping maintain a continuous, protected pathway for conductors at size transitions.
  • Model MR4030: Kraloy model designation identifying this specific 4" x 3" reducing bushing within the Kraloy PVC fitting lineup.
  • Lightweight, Non-Metallic Material: Rigid PVC construction is lighter than metallic alternatives, easing handling and installation while eliminating the risk of metal corrosion.
  • System Compatibility: Designed to work within rigid PVC conduit systems, keeping the entire raceway consistent in material from run to run.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Rigid PVC Conduit Systems
  • Conduit Trade Size Transitions in Electrical Raceways
  • Commercial and Industrial Electrical Installations
  • New Construction and Retrofit Electrical Projects
  • Underground and Above-Ground PVC Conduit Runs

Why Kraloy?

Kraloy manufactures its rigid PVC conduit fittings, including the MR4030 reducing bushing, to support dependable, corrosion-resistant electrical installations. Built from rigid PVC, this reducing bushing is designed to hold up in the field while keeping an all-PVC raceway consistent from the 4" conduit down to the 3" transition point. Electrical contractors can rely on Kraloy PVC fittings for straightforward, code-conscious conduit installations across commercial, industrial, and residential projects.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Type:
Bushing
Product Subgroup:
PVC Conduit & Fittings
Country of Origin:
Canada
Product Material:
PVC
Product Group:
Conduit & Raceway

Kraloy 78359 – Frequently Asked Questions

1) What sizes does the Kraloy PVC reducing bushing come in?
Two reducing combinations are offered: 4 inch x 3 inch (MR4030) and 1-1/2 inch x 1 inch. Both step a larger trade size conduit down to the smaller size within a rigid PVC raceway.
2) Will a Kraloy reducing bushing work in a rigid metal conduit run, or is it PVC only?
PVC only. The bushing is molded from rigid PVC and sized to mate with standard rigid PVC conduit, so it belongs in an all-PVC raceway. Dropping it into an RMC or EMT run would mix materials and it is not sized for those fittings.
3) What part number do I order for a 4 inch to 3 inch PVC conduit step-down?
Kraloy MR4030 is the 4 inch x 3 inch reducing bushing, carried under manufacturer number 078367. The other size in the family is the 1-1/2 inch x 1 inch bushing, manufacturer number 78359.
4) Where in a conduit run does a reducing bushing like this actually get used?
At the transition points: entering enclosures, boxes, and anywhere the raceway steps down in diameter. It keeps a continuous protected pathway for the conductors as the conduit size changes, above ground or underground, in commercial, industrial, and residential work.
5) Is the Greenlee 3037AV bushing an alternative to a Kraloy MR4030 PVC reducing bushing?
No. The Greenlee 3037AV is a replacement bushing for the 730EBB cable bender, a tool component rather than a conduit fitting. The Kraloy MR4030 is a rigid PVC reducing bushing that transitions a conduit run from a 4 inch trade size down to a 3 inch trade size within a rigid PVC raceway. If you are stepping conduit diameter down at an enclosure or box, the reducing bushing is the part you want; the 3037AV serves a bender, not a raceway.
6) Is a PVC reducing bushing better than a metal one for a wet or corrosive location?
Rigid PVC does not corrode, and it resists chemicals, which is why it is used where a metal reducer would eventually rust. It is also lighter to handle than metallic alternatives. The tradeoff is mechanical: PVC has no metal's impact strength, so in high-abuse areas contractors often stay metallic.
How fast can I get the Kraloy 78359 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 Kraloy 78359 come with a warranty?
Absolutely. The Kraloy 78359 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 Kraloy 78359?
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
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