Holman 4mm Barbed Joiner (10x Pack): Efficient Connecting Solution for 4mm Riser Tube

The Holman 4mm Barbed Joiner (10x Pack) is a high-quality, durable, and efficient connecting solution for 4mm riser tubes in irrigation systems. Manufactured by Holman, a respected Australian brand with over 20 years of experience in innovative watering, lifestyle, and lighting products, these joiners ensure reliable performance and longevity for your garden irrigation needs.

Features and Benefits

  • High-quality material: Made from durable and long-lasting plastic, ensuring the joiner's resistance to wear and tear, and maintaining its performance over time.
  • Easy-to-use design: The barbed joiner's design allows for a quick and secure connection between 4mm riser tubes with minimal effort.
  • 10x Pack: This pack contains 10 Holman 4mm Barbed Joiners, allowing multiple connections in your irrigation system simultaneously.
  • Compatibility: Suitable for use with standard 4mm riser tubes and compatible with a variety of irrigation systems.
  • Australian Brand: Manufactured by Holman, a trusted Australian brand with a commitment to quality, innovation, and customer satisfaction.

How to Use

  1. Ensure that both the 4mm riser tubes you want to connect are clean and free from debris.
  2. Position the Holman 4mm Barbed Joiner at the end of one of the tubes, with the barbed section facing the interior of the tube.
  3. Push the barbed section of the joiner into the 4mm riser tube until it is securely fitted, ensuring a tight and leak-free connection.
  4. Repeat steps 2 and 3 with the other 4mm riser tube you wish to connect.
  5. Check the connected tubes for any leaks or loose connections, and if necessary, make adjustments to ensure a proper fit.

Aqua Gardening Suggests These are Best For

The Holman 4mm Barbed Joiner (10x Pack) is ideal for gardeners, landscapers, and irrigation enthusiasts looking to establish or expand an efficient and easy-to-install irrigation system. These joiners are perfect for residential gardens, public green spaces, agricultural applications, and any situation where reliable 4mm riser tube connections are essential.

Notes from Aqua Gardening

  • Ensure proper fit and secure connections to prevent leaks and potential damage to your irrigation system.
  • Avoid over-tightening the joiners as it may result in tube damage or compromised performance.
  • Always follow the manufacturer's recommendations and guidelines for installation and maintenance to ensure the longevity of your irrigation system components.


What is the purpose of the 4mm Barbed Joiner?

The 4mm Barbed Joiner is designed to connect two pieces of 4mm riser tubing in your irrigation system. They provide a secure, leak-free connection between tubes, ensuring efficient water delivery to your plants.

Are these joiners compatible with any brand of riser tubing?

Yes, the 4mm Barbed Joiner is a universal fitting and can be used with any brand of 4mm riser tubing, providing a secure and reliable connection.

How do I install the 4mm Barbed Joiner to connect two riser tubes?

To install the 4mm Barbed Joiner, simply push the ends of the riser tubes onto the barbed ends of the joiner. The barbs provide a secure grip, and the connection should be leak-free. No additional tools are required for installation.

Are these joiners suitable for use in both indoor and outdoor gardening setups?

Yes, the 4mm Barbed Joiner by Holman is designed to work in various gardening environments, including both indoor and outdoor setups. They are made from durable materials to withstand different weather conditions and usage.

Can I use the 4mm Barbed Joiner with other Holman irrigation products?

Yes, the 4mm Barbed Joiner is designed to work seamlessly with various other Holman watering products, including drippers, micro-sprays, and watering controllers, for an efficient and comprehensive irrigation system.

Are the joiners reusable if I need to modify my irrigation system?

Yes, the 4mm Barbed Joiner can be reused when adjusting or expanding your irrigation system. Simply disconnect the riser tubes from the joiner and reattach them in the desired positions.

Does Holman offer customer support if I need assistance with installation or troubleshooting?

Yes, Holman provides customer support for their products. You can contact them for assistance with installation, troubleshooting, or any other questions related to their products. Their commitment to innovative design and quality ensure that you have a reliable and efficient irrigation system.

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