Claber 90421 25mm MDPE to 3/4" Male Thread
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DESCRIPTION
Claber 90421 – 25mm MDPE to 3/4" Male Thread Coupling
The Claber 90421 is a straight-through coupling designed to connect 25mm MDPE irrigation pipe to a 3/4" (20–27mm) female threaded connection, such as a tap, solenoid valve, or the start of your water supply line. It's the go-to fitting for beginning an underground irrigation run straight from the source.
One end pushes securely onto your 25mm polyethylene pipe using Claber's compression push-fit system, while the other carries a male 3/4" thread that screws directly into a female-threaded outlet, giving you a watertight connection without the need for tools, tape, or sealant. It's equally at home connecting to a solenoid valve manifold or picking up from an existing female coupling (Claber code 90804) elsewhere in your system.
Made from durable PP (polypropylene), the 90421 is built to handle life underground, standing up to soil pressure and moisture without breaking down over time. It's a compact fitting too, at just 70.5mm long and 52mm in diameter, weighing only 42g, so it tucks neatly into valve boxes or tight trench runs.
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SHIPPING & RETURNS
Order Processing & Shipping
Our team works efficiently to ensure most standard orders are processed the same day as purchased Monday - Friday. Once your order has been picked and packed, we hand it over to one of our trusted courier partners for delivery.
As soon as your parcel has shipped, you’ll receive an automated confirmation email containing your unique tracking number. Tracking becomes active once the courier collects your package, allowing you to follow your order’s journey every step of the way.
We maintain a large stock inventory, and our stock control system is updated every few minutes. If an item is shown as in stock on our website, it almost certainly is—and will be shipped quickly.
Returns Policy
We offer a 30-day no-quibble returns policy for your peace of mind.
If you wish to return an item, simply log in to your account and create a return request. Once approved, package the item securely and send it back to us.
Upon receiving your return, our team will process your refund within 5 working days.
Please note:
- Items should be returned in their original condition and packaging.
- Refunds are issued to the original payment method used at checkout.
- Return shipping costs are the responsibility of the customer unless the item is faulty or incorrect.








