Make joint adjustments quick and effortless with the John Guest MDPE compression cap wrench tool. Purpose-built for the John Guest MDPE compression fittings range, it is designed to suit pipe sizes from 16mm up to 110mm.

Constructed from a lightweight yet durable aluminium alloy, this tool ensures a secure grip during installation or routine maintenance. It allows you to easily loosen, tighten, or remove compression nuts without causing scuffs or damage to the fitting components.

• Purpose-built wrench – designed for John Guest MDPE compression fittings
• 16mm to 110mm capacity – compatible with a wide range of fitting sizes
• Aluminium alloy – lightweight and durable construction for site use
• Damage-free adjustment – loosen or tighten nuts without harming components
• Secure grip – ensures efficient operation during maintenance or installation

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.