Greenlee 50165151 Conduit Pist...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$105.44
$55.44
Greenlee 50165151 Conduit Piston, Flexible Foam Fishing Tool

Greenlee 50165151 Conduit Piston, Flexible Foam Fishing Tool

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Model: 50165151

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

$105.44
$55.44
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Greenlee 50165151 Conduit Piston, Flexible Foam Fishing Tool

The Greenlee 50165151 Conduit Piston is engineered for use with a blower or vacuum power fishing system to pioneer the pull line through a conduit run. Built with a flexible foam body, the piston creates an air-tight seal inside the conduit so blower or vacuum air pressure can efficiently drive the piston and attached line through long or congested runs. Pistons are available for all types and sizes of conduit from 1/2 IN through 6 IN, making this a core accessory for electricians and contractors who rely on power fishing systems to speed up cable and wire installation. A color-coded end disk with embossed size markings allows crews to quickly identify the correct piston for the job, reducing downtime on the jobsite and preventing the wrong size from being loaded into the conduit run. Whether working on new construction or a renovation project, this piston helps crews move pull lines through long, congested, or obstructed conduit runs without the labor of manual fishing.

Key Features

  • Trade Size Range: Pistons available for all types and sizes of conduit from 1/2 IN through 6 IN, covering nearly every conduit fishing application.
  • Durable Construction: Flexible foam body provides an air-tight seal against the conduit wall, allowing blower or vacuum air pressure to move the piston efficiently through the run.
  • Power Fishing Compatible: Designed for use with a blower or vacuum power fishing system to pioneer the pull line through conduit runs, saving labor versus manual fishing.
  • Color-Coded Sizing: Color-coded end disk with embossed size markings enables fast, easy selection of the correct piston size on the jobsite.
  • Reinforced Center Rod: Strong steel center rod with loops on both ends provides a secure attachment point for pull line or fish tape.

Technical Specifications

  • Country Of Origin: US
  • Product Height: 8.500 IN
  • Product Length: 8.500 IN
  • Product Width: 8.500 IN
  • Volume: 614.125 CI

Typical Applications

  • Power Fishing Cable and Wire Through Conduit Runs
  • Commercial and Industrial Conduit Installations
  • Blower and Vacuum Fishing System Setups
  • New Construction and Renovation Wiring Projects
  • Long or Congested Conduit Run Pulls

Why Greenlee?

Greenlee conduit pistons combine a flexible foam body for an air-tight seal with a strong steel center rod, giving electricians a dependable, purpose-built accessory for power fishing systems. Color-coded, embossed sizing markings help crews grab the right piston fast, keeping conduit fishing jobs moving efficiently across a full range of conduit sizes from 1/2 IN through 6 IN. Made in the US, the 50165151 conduit piston is built to withstand repeated jobsite use while maintaining the air-tight seal that power fishing systems depend on for reliable, efficient cable pulls.

Manufacturer Resources

Product Specs

Country Of Origin:
US
Product Height:
8.500 IN
Product Length:
8.500 IN
Product Width:
8.500 IN
Volume:
614.125 CI
Product Type:
Conduit
Department:
Electrical
Product Subgroup:
Knockout Punches

Greenlee 50165151 – Frequently Asked Questions

1) What is a conduit piston used for when pulling wire?
A conduit piston is the carrier you send down an empty conduit run on a blower or vacuum power fishing system. The foam body seals against the conduit wall so air pressure (or suction) pushes it through, dragging a pull line behind it. That line then pulls in your rope or cable. Greenlee's 50165151 piston has a flexible foam body for the air-tight seal and a steel center rod with loops on both ends so you can tie off the string at either end.
2) What conduit sizes do Greenlee conduit pistons cover?
Greenlee makes pistons for all types and sizes of conduit from 1/2 inch through 6 inch. Each piston is sized to one conduit diameter, so you pick the one matching the run you are blowing. The end disk is color coded and the size is embossed on it, which is how you grab the right one out of a bucket on the truck without measuring.
3) Can I tie a pull line to both ends of the Greenlee 50165151 piston?
Yes. The steel center rod runs through the foam body and has a loop at each end, so you can attach line front and back. That lets you retrieve the piston from the launch end if it hangs up, instead of losing it in the run.
4) Will a conduit piston work if I only have a fish tape or a rodder?
No. A piston only moves when air does, so it needs a blower or vacuum power fishing system to pioneer the line through the run. If you are pushing mechanically instead of blowing, you want a fish tape or a duct rodder, not a piston. The piston is the right tool for long or multi-bend runs where a rod will not make it.
5) How do I tell Greenlee pistons apart once they are mixed together in a case?
By the end disk. Each one is color coded and carries the conduit size embossed right into it, so selection is visual rather than trial and error. That matters on a job where a crew is running several conduit sizes at once and grabbing an undersized piston means a blown-through pull and a restart.
6) Where is the Greenlee 50165151 conduit piston made, and what is the part number to order?
Order it as Greenlee part number 50165151. Country of origin is the United States.
7) What shipping carton size should I plan for on the Greenlee 50165151 piston?
The packed item measures 8.5 x 8.5 x 8.5 inches, a volume of 614.125 cubic inches. Useful if you are consolidating a shelf of fishing gear on a shop cart or a job trailer.
How fast can I get the Greenlee 50165151 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 50165151 come with a warranty?
Absolutely. The Greenlee 50165151 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 50165151?
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 50165151 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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