Minerallac 67754 Foam Conduit Piston 3 Inch

Product Description

The MINERALLAC 67754 is a 3-inch foam conduit piston used to pull wire and cable through conduit runs. The piston is pushed or blown through the conduit ahead of a pull line, seating snugly against the inner wall to create a pneumatic seal. Once air pressure is applied, the piston travels the length of the conduit, dragging the pull line behind it. Electricians use this method to reduce manual labor on long or complex conduit runs. The foam construction allows the piston to conform to minor irregularities inside the conduit bore while maintaining consistent contact and forward movement.

This piston is sized for 3-inch conduit and is suited to commercial and industrial electrical installations where pneumatic wire-pulling methods are standard practice. It is commonly used on new construction pulls through EMT, rigid metal conduit, or PVC conduit of matching trade size. Licensed electricians and low-voltage installers working on large cable bundles or long horizontal or vertical runs will find this tool appropriate for their workflow.

Key Features

• Sized for 3-inch trade-size conduit for consistent pneumatic sealing
• Foam construction conforms to conduit interior for reliable airflow engagement
• Lightweight at 0.04 pounds, adding no meaningful pull resistance
• Designed for use with standard pneumatic conduit-blowing equipment
• Compatible with common conduit types including EMT, rigid, and PVC of matching trade size

Compatibility

Designed for use in 3-inch trade-size conduit as part of a pneumatic wire and cable pulling system. No specific system family or model compatibility was provided in the product data.

Installation Notes

Installation is performed by licensed electricians using pneumatic conduit-blowing equipment. Verify that the conduit run is clear of obstructions before inserting the piston. Follow the equipment manufacturer's guidelines for safe operating air pressure and never exceed the rated capacity of the blowing system. Work in accordance with applicable NEC requirements for the conduit system being used.

Technical Specifications

• Conduit Size: 3 inches
• Weight: 0.04 pounds
• Material: Foam
• UPC: 08593767754

Standard Information

• Brand: MINERALLAC
• Manufacturer Part Number: 67754