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Our ISO arms replace many machines you might rely on in a commercial gym, giving you even more reason to bring the gym home! This innovative power rack attachment offer a ton of versatility and save you precious floor space by replacing bulky equipment and easily storing out of the way when not in use.

Because of our unique bearing design, REP ISO arms can travel through a full 180-degree arc to offer limitless training options. With this one attachment, you're able to train more dynamically: row, deadlift, squat, press, belt squat - seated or standing - and much more. The independent arms allow lifters of all strength levels to seamlessly move between two-sided and one-sided movements, adding ease and versatility to your workout routine.

These heavy duty ISO arms are constructed with a 4-way hole pattern so athletes have a completely modular arm (sliding the handle up and down, changing the handle's orientation, adding j-cups) that allows you to keep innovating.

Key Features

  • Adjusts to accommodate different movements and heights.
  • Heavy duty 3x3 11 gauge steel construction.
  • Plastic lining to protect powder coating on your uprights.
  • Two high point secure lock-in positions for extra versatility.
  • Eye-bolt design to allow for belt squatting and other attachments.
  • Removable and easily adjustable knurled handled.
  • Stainless steel accents.
  • Easily stored in locked, out-of-the-way upright position to save space.
  • Fit up to seven 45lb iron plates on each arm.
  • **Adam not included.**
  • Sold in Pairs.


  • Compatible with REP PR-4000 and PR-5000 V2 series racks.
  • 3x3 11 gauge steel with black powder coat finish.
  • Arm weight (each): Approximately 64lbs, 45lbs without the handle.
  • Arm length: 42"
  • Maximum arm width (including weight horn and handle): 31"
  • *REP recommends that ISO Arms be used only on racks that have been securely bolted to a floor and/or on which Front Feet Extensions are in use.

Installation and Adjustment Tips:

Note: Each ISO arm weighs ~64lbs, installation and adjustment may be considered a small workout in itself.

  • With the arm resting on the ground, lift and align the mount with the upright so that it is resting on your lower crossmember. This should align the mount and upright holes so that pins can be inserted with minimal effort.
  • Lock the arm in parallel alignment with the upright to prevent swinging and pinching.
  • Remove the handle, this reduces the total weight of the arm and makes adjustment easier.


Watch the HILARIOUS REP ISO Arm teaser video!


Out of Stock


Starting at $599.99

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*Preorders for this item will ship out the week of 12/27/21*

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