Add reliable flow isolation to your water supply lines with the John Guest MDPE compression stop tap, supplied in a 25mm diameter. It provides dependable on/off water control for cold water service systems.

Manufactured with a durable and compact construction, this stop tap is engineered to perform reliably in both above-ground and below-ground installations. It arrives pre-assembled and ready to install without needing specialist tooling or heat.

The demountable connection ensures that maintenance, inspection, and trench alterations remain straightforward.

• 25mm compression stop tap – provides reliable isolation for cold water lines
• Flow control – easily shut off water supply during routine maintenance
• Versatile installation – engineered for both above and below-ground use
• Pre-assembled fitting – install immediately without heat or specialist tools
• Demountable connection – simple to disconnect or adjust in trench layouts
• Available in various sizes – including 20mm and 32mm

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.