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Port Tube

3" diameter, 4-1/2" long

Item # 125M1702

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Item # 125M1702

In stock
Need help?
Contact our Virginia-based experts.

About the Port Tube

Building your own subwoofer enclosure? This port tube features a rolled flange to ensure a clean fit on the outside of your box. The tough ABS plastic tube features markings that make it easy for you to trim the tube to the proper length for your driver and box combination.

Product highlights:

  • ABS plastic port tube for subwoofer box construction
  • rolled front flange for secure mounting
  • internal diameter: 3", external diameter: 3-1/4"
  • depth: 4-1/2"
  • warranty: 60 days
  • Our 60-day money-back guarantee
  • MFR # M1702

What's in the box:

  • One 3" Dia x 4.5" flanged port tube

Customer reviews

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Port Tube reviews

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More details on the Port Tube

Mark G.
The Port Tube replaces these items:

Product Research


Overview: This is a plastic port tube used for ported enclosures for subwoofers.


  • Cutout Diameter: 3.243"
  • Interior Diameter: 3.004"
  • Outer Flange Diameter: 3.894"
  • Length: 4.5"

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Customer Q&A

Crutchfield asked: Why did you buy this?
needed it for enclosure [ Jim  Aug 29, 2018 ]
Building a sub box for car. Not too loud but just a little kick in the sound system. :) [ MICHAEL  Jul 06, 2018 ]
for speakers to properly work. [ JOHN  Dec 18, 2016 ]
I listen to heavy metal and rap. As with most people that enjoy these genres, ported boxes sound much better [ Jon  May 04, 2016 ]

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