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25mm (1 inch) Ball to 38mm (1.5 inch) Ball Adapter

Original price $9.95 - Original price $9.95
Original price
$9.95 - $9.95
Current price
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Original price $9.95 - Original price $9.95
Original price
$9.95 - $9.95
Current price

Arkon's SP25MM38 adapter enables seamless connection and extension between mounts and pedestals with a 25mm (1") ball mounting pattern and those with a 38mm (1.5") ball mounting pattern.

Compatible with 25mm or 38mm ball double-socket Robust Mount Shafts, this adapter also works with various Arkon Robust Mount models and 25mm or 38mm mounts and pedestals from other manufacturers, including RAM Mounts Size B or Size C (sold separately). It's constructed from rugged reinforced composite for strength and is designed for longevity.


  • Reliable upgrade or replacement for your current 25mm to 38mm ball adapter
  • 25mm ball to 38mm ball ends to extend your mount setup
  • Allows the complete customization of your Arkon mount setup
  • Fully compatible with 25mm and 38mm ball pattern holders
  • Durable and hardwearing thanks to its reinforced composite construction

Designed For Customization

The 25mm (1") Ball to 38mm (1.5") Ball Adapter provides a simple and effective solution for extending and customizing your Arkon setup. Designed to work with various Arkon Robust™ 38mm shafts, it allows for easily adding another shaft to your configuration. 

This adapter lets you connect shafts with 25mm and 38mm ends, such as the Arkon 5" 38mm SPRM38MM and the 3.75" 25mm SP-RM250 shaft. This adapter enhances and optimizes your setup and is perfect for achieving a customized mounting experience

Durable and Tough

When it comes to frequently adjusting your mount position, you need an adapter that can withstand everyday use. The 25mm (1") Ball to 38mm (1.5") Ball Adapter is built to last, with its industry-strength reinforced composite materials ensuring reliability and longevity. Its simple yet robust design guarantees it will be a durable addition to your setup, standing the test of time.

Compatible with:

Compatible with any device, shaft, or holder that utilizes a 38mm / 1.50 inch and 25mm / 1 inch ball size.