Port Tube

2" diameter, 4-1/2" long

Item #: 125M1701

In Stock

3 Reviews

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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: 1-15/16", external diameter: 2-1/8"
  • depth: 4-1/2"
  • warranty: 60 days
  • Our 60-day money-back guarantee

Port Tube Reviews

Average Customer Review:

3 reviews
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Written By Dervon white, North Carolina on Sunday, November 15, 2015

Crutchfield Customer Review (What's this?)

Good product

flashlight replacement

Written By Amazing J, Dallas, TX on Saturday, May 24, 2014

Crutchfield Customer Review (What's this?)

It fits perfectly tight like I like it. Not as soft as the original but much more durable. It popped right in and I finished very fast! Great product.

Quality design

Written By Chris, Chester, VA on Sunday, December 14, 2008

Crutchfield Customer Review (What's this?)

Well its a port tube, but a quality one. Easy to cut to your desired length,
the flange on the top will cover up any "not so perfect cut out hole", but i
used a hole saw to cut the hole for it.

Hands-on research

What's in the box?

  • One 2" Dia x 4.5" flanged port tube

Product Research


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


  • Cutout Diameter: 2.208"
  • Interior Diameter: 1.965"
  • Outer Flange Diameter: 2.87"
  • Length: 4.508"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.