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Do Shower Arms Fit All Shower Heads?

by E Cavendish 10 May 2024 0 Comments
Do Shower Arms Fit All Shower Heads?

When renovating a bathroom or simply updating your shower setup, one question that often arises is whether shower arms are universally compatible with all types of shower heads. At Tapron, we understand the importance of ensuring that every component in your bathroom fits perfectly not only for aesthetic reasons but also for functionality and ease of installation. Here is a detailed look at the compatibility between shower arms and shower heads, and how to ensure you choose the right parts for a seamless bathroom design.

What are Shower Arms?

Shower arms are the sections of piping that connect the shower head to the water supply in the wall. They come in various shapes and lengths, from straight extensions to those with an S-shape or gooseneck design. The primary purpose of a shower arm is not only to provide a pathway for water but also to position the shower head at the desired height and distance from the wall.

shower arms and shower heads

Compatibility of Shower Arms and Shower Heads

Standard Thread Size:

Most shower arms and shower heads are designed with a standardized 1/2 inch NPT (National Pipe Thread) size, which is common across many countries, including Ireland. This standardization means that in many cases, shower heads and arms are interchangeable between different brands and models.

Exceptions and Variations:

While the 1/2 inch NPT size is widely used, there are exceptions, particularly with certain proprietary designs or older plumbing systems which may use different thread sizes or standards. It’s crucial to verify the specifications of both the shower arm and the shower head before making a purchase.

Design Considerations:

Apart from the threading, the compatibility between a shower arm and head also involves aesthetic and functional harmony. The length and angle of the shower arm should complement the size and weight of the shower head. A heavy, large shower head, such as a rain shower model, might require a sturdier arm, potentially with additional support.

Choosing the Right Shower Arm

  1. Check Existing Fixtures:

If you are replacing a shower head but keeping the existing arm, ensure that the new head will fit the existing arm’s thread and handle its weight and size.

  1. Consider the Shower Space:

Choose a shower arm that positions the head at an optimal height and distance for the users. A longer arm can extend the shower head further out, ideal for larger showers, while an S-shaped arm can raise the height of the shower head without extensive plumbing adjustments.

  1. Style and Finish:

Select a shower arm that matches the finish and style of your new shower head and other bathroom fixtures. Consistency in finish (chrome, matte black, brushed nickel, etc.) and design enhances the overall aesthetics of your bathroom.

  1. Durability and Quality:

Opt for high-quality materials that resist corrosion and wear. Solid brass and stainless steel are excellent choices for longevity and maintenance ease.

shower head

Installation Tips

Installing a shower arm is generally straightforward:

  • Turn off the Water Supply: Always start by shutting off the water to avoid leaks during installation.
  • Remove the Old Shower Arm: Use a wrench to unscrew the old arm. Teflon tape or thread-seal tape on the threads might need to be cleaned off.
  • Install the New Arm: Wrap new Teflon tape clockwise around the threads for a watertight seal and screw the new arm into place. Tighten with a wrench but be careful not to overtighten.
  • Attach the Shower Head: Screw the shower head onto the new arm, again using Teflon tape for sealing.

Explore our shower arms collection here


While most shower arms and shower heads are compatible due to standardized sizing, it's important to verify all aspects of compatibility before making a purchase. At Tapron, we offer a wide range of high-quality shower arms and heads, ensuring that you can find the perfect match for your bathroom’s needs and style. Visit Tapron Ireland today to explore our diverse selections and find everything you need for your bathroom renovation.

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