Greenlee 50110403 Conduit Pist...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.26
$19.84
Greenlee 50110403 Conduit Pistons

Greenlee 50110403 Conduit Piston, Flexible Foam Body, Steel Center Rod

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Model: 50110403
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$65.26
$19.84
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Greenlee 50110403 Conduit Piston, Flexible Foam Body, Steel Center Rod

The Greenlee 50110403 Conduit Piston is engineered to work with a blower or vacuum power fishing system to pioneer the pull line through a conduit run, giving electricians and cable installers a fast, reliable way to establish a path before pulling wire or cable. Its flexible foam body creates an air-tight seal inside the conduit so blower or vacuum pressure can effectively drive the piston through the run, while a strong steel center rod with loops on both ends provides a secure attachment point for the fish line. Conduit pistons in this line are available for all types and sizes of conduit from 1/2 IN through 6 IN, and each piston features a color-coded end disk with embossed size markings for fast, easy selection on the job site. This design helps reduce guesswork and setup time when matching the correct piston to the conduit being run, keeping installation crews moving efficiently on demanding commercial and industrial jobs.

Key Features

  • Air-Tight Seal: Flexible foam body forms an air-tight seal for effective use with blower or vacuum power fishing systems.
  • Color-Coded Sizing: End disk is color-coded with embossed size markings for fast, easy selection of the correct piston.
  • Durable Steel Center Rod: Strong steel center rod with loops on both ends provides a secure, reliable attachment point for fish line.
  • Broad Size Compatibility: Pistons are available for all types and sizes of conduit from 1/2 IN through 6 IN.
  • Power Fishing Compatible: Designed for use with blower or vacuum power fishing systems to pioneer the fish line through the conduit run.
  • Compact, Purpose-Built Sizing: This piston measures 4.750 IN long, 4.500 IN wide, and 4.500 IN high (96.1875 CI volume), sized for reliable travel through its intended conduit run.

Technical Specifications

  • Country Of Origin: US
  • Product Height: 4.500 IN
  • Product Length: 4.750 IN
  • Product Width: 4.500 IN
  • Volume: 96.1875 CI

Typical Applications

  • Conduit Line Pioneering for Power Fishing Systems
  • Electrical Cable and Wire Pulling Preparation
  • Commercial and Industrial Conduit Installations
  • New Construction and Renovation Wiring Projects

Why Greenlee?

Greenlee conduit pistons combine a durable steel center rod with a flexible, air-tight foam body to deliver dependable performance with blower and vacuum power fishing systems. Color-coded, embossed end disks make size selection quick and accurate across the full 1/2 IN through 6 IN range, helping installation crews work efficiently and confidently on demanding conduit runs, from small branch circuits to large industrial raceways where establishing a reliable pull line quickly can save significant labor time on-site.

Manufacturer Resources

Product Specs

Country Of Origin:
United States
Product Height:
4.500 IN
Product Length:
4.750 IN
Product Width:
4.500 IN
Volume:
96.1875 CI
Product Type:
Conduit Piston
Department:
Electrical
Product Subgroup:
Conduit Pistons
Product Group:
Conduit & Raceway

Greenlee 50110403 – Frequently Asked Questions

1) What does a Greenlee conduit piston actually do on a conduit run?
A conduit piston is what you send through an empty raceway to pioneer the pull line before any wire goes in. The Greenlee 50110403 has a flexible foam body that seals against the conduit wall so a blower or vacuum power fishing system can drive it down the run, and a steel center rod with loops on both ends to tie your fish line to. Once it pops out the far end you have a line in place to pull rope, then cable.
2) How do I pick the right size conduit piston for my raceway?
Match the piston to the conduit size. Greenlee builds these for all types and sizes of conduit from 1/2 inch through 6 inch, and each one carries a color-coded end disk with the size embossed on it so a crew can grab the right one out of the kit without measuring. An undersized piston won't seal and will stall or pass air around it; an oversized one binds.
3) What size is the Greenlee 50110403 piston itself?
The 50110403 measures 4.750 inches long, 4.500 inches wide and 4.500 inches high, with a stated volume of 96.1875 cubic inches. That body diameter puts it at the large end of the range, so it is a piston for large-diameter raceway rather than a small branch-circuit run.
4) Does the conduit piston work in PVC as well as steel conduit?
Yes. Greenlee states these pistons cover all types of conduit in the 1/2 inch through 6 inch range, so PVC, EMT, rigid and IMC runs are all in scope. What matters is the inside diameter the foam body has to seal against, not the conduit material.
5) Is the fish line included with the Greenlee 50110403 piston?
No. The 50110403 is the piston only, a foam body on a steel center rod. You supply the pull line and the blower or vacuum unit; the rod's end loops are the attachment point for whatever line your power fishing system uses.
6) Will a conduit piston work on a run with bends and offsets?
The body is flexible foam, which is what lets it negotiate a conduit run and still hold a seal against the wall under blower or vacuum pressure. It's intended for pioneering a line through commercial and industrial conduit runs, including large raceways, as part of a power fishing setup rather than being rodded through by hand.
7) What is the Greenlee part number and where is this piston made?
Order it as Greenlee MPN 50110403. Country of origin is the US.
How fast can I get the Greenlee 50110403 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 Greenlee 50110403 come with a warranty?
Absolutely. The Greenlee 50110403 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 Greenlee 50110403?
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 Greenlee 50110403 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.
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