The TRV4 Classic has achieved the highest Class I rating for energy efficiency under the certification scheme of the European valve manufacturers association (TELL).



The rating is based on how quickly a TRV reacts to changes in room temperature; how effectively it maintains stable room temperature; and how it performs after changes in water temperature and system pressure.

Britain's best loved TRV4 range of thermostatic radiator valves, Drayton's TRVs set the standards for design, performance and quality. The range includes Lockshield and Pushfit packs to suit most domestic and commercial heating systems.

• Contemporary slim-line design
• Ultra sensitive liquid-filled sensor
• Easy to clean smooth surfaces
• Half/full click stop settings
• Frost protection position
• Flow rate adjustment
• Complete with chrome valve
• Non-stick internals
• Pre-setting
• Double gland seal
• Warranty: 18 Months

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.