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42 x 28mm Reducing Coupling - Compression Fittings - 2 Pack Details

This 42 x 28mm reducing coupling uses compression connections for secure and reliable joining of copper tube. Designed for gas and water systems, it suits new installations, repairs, or upgrades. No soldering or heat is required, which supports fast, clean fitting or removal.

The coupling is made from robust brass and tested to 16 bar maximum operating pressure and temperatures up to 110°C. Suitable for copper tube manufactured to BS EN 1057, it meets BS EN 1254-2 standards and carries full WRAS approval, confirming compliance with UK water regulations.

Supplied as a pack of two and backed by a 25 year manufacturer guarantee for long term reliability in demanding environments.

Key Features

  • Manufactured to BS EN 1254,Compatible With Copper Tube Manufactured to BS EN 1057,WRAS Approved,Guaranteed for 25 years

Specifications

Unless stated, all measurements are in millimetres (mm)
Applications Gas,Water
Colour Brass
Connection Type Compression
Equal/Reducing Reducing
Finish Brass
Manufacturer Guarantee 25 Years
Material Brass
Max Operating Pressure 16 Bar
Max Operating Temperature 110C
Pack Size 2
Size Designation 42 x 28mm
Standards BS EN 1254-2, BS EN 1057
Style Straight
Type Straight
WRAS Approved True

Delivery

In order to provide you with the best service, we use a range of courier services which helps us ensure that your delivery reaches you in the fastest time and in perfect condition.

Please note: orders placed after the courier cut-off (shown below) on a Friday will be processed on the next business day. Deliveries are not made on Bank Holidays, so during busy seasonal periods such as Easter and Christmas, please allow a little extra time for your items to arrive.

For all information regarding our Shipping Policy, please read here.

For 7657-3802 we have the following delivery aim:

Order Cut Off Time
1200
Standard Delivery Time (Days)
2
Premium Delivery Time (Days)
1

Returns

PlumbHQ offers a straightforward 30-day returns policy. If you’re not completely satisfied with your purchase, simply return it within 30 days for a refund or exchange.

To initiate a return, please follow these steps:

  1. Go to account.plumbhq.uk
  2. Log in using the email address associated with your order and follow the security instructions.
  3. Once logged in, find your order and follow the options to “Request Return” and follow the instructions provided to complete the process.

Once your return request is submitted, it will be reviewed to ensure it meets the criteria of our refund policy. If it does, the return process will be initiated.

It is very important to communicate with our team about any returns. Any items sent back to us without having made contact with our team may suffer unwanted delays and extra charges.

Full details of our returns policy can be found here.

Finance

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If it’s your first time using this service, you may be asked to review and sign a short agreement. Once approved, your account will be set up and future purchases can be completed in just a click — with easy, flexible payments.