Integrate threaded plumbing components into your supply lines with the John Guest MDPE compression male thread adaptor, supplied in a 25mm x 1/2" size. Featuring an integrated male BSP thread, it joins MDPE pipework directly to female BSP fittings in cold water service systems.

Manufactured with a durable and compact construction, this fitting is suited for installations requiring seamless pipework transitions or system expansion. It arrives pre-assembled and installation-ready, eliminating the need for specialist tools or heat joining.

With its demountable connection, you can easily alter, inspect, or maintain pipework installed below ground.

• 25mm x 1/2" adaptor – connects MDPE pipe to female BSP threaded fittings
• Male BSP thread – easily attach valves and accessories to cold water lines
• Pre-assembled build – quick and efficient fitting without specialist tools
• Compact profile – durable design ideal for trench installations
• Demountable joint – allows for straightforward system alterations and repairs
• Available in various sizes – including 20mm x 1/2", 25mm x 3/4", and 32mm x 1"

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.