Greenlee 614 Conduit Piston, Foam Body with Steel Center Rod

Greenlee 614 Conduit Piston, Foam Body with Steel Center Rod

The Greenlee 614 Conduit Piston is engineered to pioneer fish line through a conduit run when paired with a blower or vacuum power fishing system. Built around a flexible foam body that forms an air-tight seal inside the conduit and a strong steel center rod with loops on both ends for secure line attachment, this piston family is available for all types and sizes of conduit from 1/2" up through 6", including the 3/4", 1-1/4", 1-1/2", and 2-1/2" sizes commonly stocked on the truck. A color-coded end disk with an embossed size marking makes fast, accurate selection simple on the jobsite, so crews spend less time digging through a bin and more time pulling wire.

Key Features

• Trade Size Range: Pistons are available for all types and sizes of conduit from 1/2" through 6", with this listing covering the 3/4", 1-1/4", 1-1/2", and 2-1/2" sizes, so electricians can match the piston to the exact conduit run.
• Durable Construction: A strong steel center rod with loops on both ends provides a reliable attachment point for fish tape or pulling line during the power fishing process, standing up to repeated tugging without pulling free.
• Air-Tight Seal: The flexible foam body conforms to the interior wall of the conduit to create an air-tight seal, allowing the piston to travel efficiently under blower or vacuum pressure across long or bent conduit runs.
• Fast Size Identification: A color-coded end disk with an embossed size marking lets electricians quickly grab the correct piston for the conduit size in use, cutting down on setup time on the jobsite.
• System Compatibility: Purpose-built for use with a blower or vacuum power fishing system to pioneer the pulling line through a new or existing conduit run, whether the conduit is empty or partially obstructed.

Technical Specifications

• Available Sizes: 3/4", 1-1/4", 1-1/2", 2-1/2" (piston family spans 1/2" through 6")
• Body Material: Flexible Foam
• Center Rod: Steel, with loops on both ends
• Country of Origin: USA

Typical Applications

• Starting a Conduit Run with a Power Fishing System
• Blower-Assisted Cable and Wire Pulling
• Vacuum-Assisted Line Placement in Conduit
• Commercial and Industrial Conduit Installations
• New Construction and Retrofit Conduit Runs

Why Greenlee?

Greenlee builds its conduit pistons with a strong steel center rod and a flexible foam body specifically engineered to seal tightly within the conduit while withstanding the pulling forces of blower and vacuum fishing systems. The color-coded, embossed sizing system reflects a focus on jobsite efficiency, helping electricians quickly grab the right piston for the conduit size at hand across the full 1/2" to 6" range. Manufactured in the United States, Greenlee conduit pistons are built to deliver dependable performance for professional electrical and low-voltage cable installation work.