Description
Antelco Green Back Valve 25mm – Barbed Inline Irrigation Shut-Off Valve
Product Description
The Antelco Green Back Valve 25mm is a durable inline shut-off valve designed for manual water-flow control in low-pressure irrigation and hydroponic systems.
Featuring 25mm barbed connections on both ends, the valve installs directly into compatible poly or LDPE tubing. Its simple quarter-turn handle allows users to quickly start, stop or isolate water flow without disconnecting the irrigation line.
The straight-through internal design supports efficient water delivery when fully open, while UV-stabilised construction provides reliable performance in greenhouses, gardens, nurseries and outdoor irrigation installations.
Key Features
- 25mm barb inlet and outlet
- Simple quarter-turn on/off operation
- Controls or isolates individual irrigation lines
- Straight-through design for efficient water flow
- Operating pressure up to 300kPa or 45psi
- UV-stabilised construction for outdoor durability
- Compact, lightweight and easy to install
- Suitable for low-pressure irrigation systems
- Green Back cap identifies standard irrigation use
- Ideal for hydroponic and greenhouse water lines
Suitable Applications
The Antelco Green Back Valve can be used for:
- Hydroponic irrigation systems
- Greenhouse and nursery irrigation
- Drip and micro-irrigation systems
- Individual growing-zone control
- Water diversion between irrigation lines
- Tank outlet and drain lines
- Submain and lateral irrigation lines
- Home gardens and landscaping systems
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Antelco |
| Product range | Green Back® Valve |
| Connection | 25mm barb × 25mm barb |
| Operation | Manual quarter-turn on/off |
| Maximum operating pressure | 300kPa / 45psi |
| Body and cover material | UV-stabilised acetal |
| Stem material | Polypropylene |
| Seal material | TPV elastomer |
| Cap colour | Green |
| Recommended use | Standard low-pressure irrigation |
| Manufacturer part number | 45545 |
Installation Instructions
- Turn off the water supply and release pressure from the irrigation line.
- Cut the compatible 25mm tubing squarely and remove any dirt or loose material.
- Push the tubing completely over the barbed connection on each side of the valve.
- Secure the connections with suitable clamps if required for the tubing type and operating pressure.
- Install the valve inline, with tubing connected to both the inlet and outlet.
- Restore the water supply and inspect both connections for leaks.
- Rotate the handle approximately 90 degrees to open or close the water flow.
Frequently Asked Questions
What is this valve used for?
It provides manual on/off control and allows an individual section of a low-pressure irrigation system to be isolated.
Is it suitable for hydroponic systems?
Yes. It can be installed in compatible low-pressure hydroponic irrigation lines to control water distribution between reservoirs, growing zones or plant lines.
What size tubing does it fit?
This model has 25mm barbed connections on both ends. Check the internal diameter and compatibility of your tubing before installation.
What is the maximum operating pressure?
The valve is designed for operating pressures up to 300kPa, equivalent to approximately 45psi.
Can it regulate pressure?
No. This is primarily an on/off isolation valve and is not a pressure regulator or precision flow-control device.
Can it be installed outdoors?
Yes. Its UV-stabilised materials are designed to provide durability in outdoor and greenhouse irrigation environments.
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Customer Reviews
This is a ripper! Works exactly as advertised. The results are already showing. Very impressed.
This thing is a beast! Solid construction and performs brilliantly. Definitely a five-star product.
So stoked with this. It's made everything so much easier. The plants are loving it.
Couldn't ask for better. Great product, great price, and great service. What more could you want?
This is a game-changer. My setup has never been more efficient. Highly recommend it.
Top-notch stuff. You can feel the quality as soon as you take it out of the box. Works perfectly.
I'm chuffed to bits with this. It's made a huge difference to my garden. The results are amazing.
This is a solid bit of kit. It's clear that it's made to last. Very happy with my purchase.
You little ripper! This is exactly what I was looking for. It's made my life so much easier.
This is the real deal. No mucking around, just a quality product that does what it's supposed to.






