Secure and Sturdy 3 Way Corner Connectors for 25mm Aluminium Square Tubes

Our 3 Way Corner Connectors are made of high-quality black plastic and designed to securely join 25mm Aluminium Square Tubes with minimal effort. Create shelves, tables, or various structures with stability and ease. These connectors, also known as Cubelock, Cubelok, and Qubelock, provide a reliable locking mechanism for assembling projects of all shapes and sizes.

Features and Benefits

  • Universal Compatibility: Designed for use with 25mm Aluminium Square Tubes
  • Durable Construction: Made of high-quality black plastic for long-lasting use
  • Effortless Assembly: Easy to connect and lock aluminium square tubes securely in place
  • Versatile Applications: Ideal for constructing shelves, tables, or a variety of projects
  • Secure Locking Mechanism: Known as Cubelock, Cubelok, and Qubelock for reliable connections

How to Use

  1. Measure and cut aluminium square tubes to the desired size for your project.
  2. Slide one end of each aluminium square tube into the joiner's open slots.
  3. Ensure that the tubes are seated properly in the joiner and are at a 90-degree angle.
  4. Repeat the process with other connectors and tubes to form your desired structure.

Aqua Gardening Suggests These are Best For

This 3 Way Corner Connector is perfect for DIY enthusiasts, carpenters, or anyone looking to create bespoke furniture or structures. It is ideal for crafting shelves, tables, or other custom frameworks using 25mm Aluminium Square Tubes.

Notes from Aqua Gardening

  • Aluminium square tubes are not included with the 3 Way Corner Connector. They can be purchased separately as "Aluminium square tube 25x25mm".
  • Always ensure that the connections are strong and secure before placing any load on the structure.
  • For additional support, consider using more connectors or reinforcing the connections as necessary.


What is the primary purpose of the 3 Way Corner for 25mm Aluminium Square Tube?

The 3 Way Corner is a plastic right angle joiner designed to connect 25mm Aluminium Square Tubes, forming structures like shelves, tables, and various other custom setups. These connectors are also known as Cubelock, Cubelok, and Qubelock.

Can I use these connectors for other tube sizes besides 25mm?

These 3 Way Corners are specifically designed for 25mm Aluminium Square Tubes. Using them with other tube sizes may not provide a secure fit or stability for your structure.

Are these connectors easy to install?

Yes, the 3 Way Corners are designed to lock together easily with the 25mm Aluminium Square Tubes, providing a simple and secure connection for your structures without the need for additional tools or hardware.

Are these 3 Way Corners durable and long-lasting?

Made from high-quality black plastic, the 3 Way Corners are designed to be both durable and long-lasting, ensuring that your structures remain stable and secure over time.

What if I need the aluminium square tubes to go with the connectors?

Aqua Gardening stocks anodised aluminium square tubes, which can be custom cut to any length you need. You can find the product "Aluminium square tube 25x25mm" on our website.

Can these connectors be used in outdoor or indoor projects?

The 3 Way Corners are suitable for both indoor and outdoor use, making them a versatile solution for various gardening and DIY projects. They can withstand typical weather conditions and usage without compromising the structural integrity of your creations.

Still Unsure if This Product is Right for You?

  • Submit a question via the Reviews & Questions tab on this page, and our team will respond to you
  • Login to check your Aqua Gardening Member Price
  • Book a free Consult with the Aqua Gardening team here
  • Still Overwhelmed? Start your Gardening Journey with a free eBook here

(SKU: 124325)

Shipping Calculator

Enter the quantity of product and your Australian suburb name to calculate the shipping costs for multiples of this item only. You can calculate the shipping costs for your entire order, including international orders, on the Cart Page.

Free Shipping Eligibility

Aqua Gardening offers free shipping on most orders above $249 that are not bulky items.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

Back Order products

These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.

Click & Collect Only products

These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.

Fast Dispatch products

These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.

Special Order products

Special Order products are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Ship-To-Store products

Products marked with ship-to-store can still be shipped to us to collect in-store! Simply check out with the shipping address: 3/4 Billabong Street, Stafford, QLD, 4053. Once your order arrives, we’ll email you to let you know that it is ready to collect.


1 Year Replacement Warranty - Store warranty, this product needs to be returned to Aqua Gardening for testing and replacement.


60 Day Returns - We will provide a refund, exchange or store credit where you have decided you no longer want the product and it is in new, unopened condition. More details...