Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Glow-worm Silicone Tube 40mm Clear S208737

Glow-worm

Glow-worm Silicone Tube 40mm Clear S208737

Clear 40mm silicone tube, part S208737, for Glow-worm air pressure switch connections.

At a glance

  • Also known as 1334424
Manufacturer part no.
S208737
GC number
E24-840
Showing prices

£9.53

£7.94 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Glow-worm S208737 is a clear silicone tube measuring 40mm, used on the air pressure switch circuit of a range of Glow-worm appliances. It forms the flexible connection between the pressure switch and the fan or flue sensing point, carrying the pressure signal that proves airflow before the boiler fires. Silicone construction keeps the tube flexible and stable where heat and repeated flexing would harden ordinary tubing.

Signs this part needs replacing

  • The tube has hardened, cracked or split, allowing the pressure signal to leak
  • The tube has collapsed or kinked, restricting the pressure signal to the switch
  • The tube has come loose or no longer grips the switch or fan spigot
  • The bore is blocked with debris, dust or condensate
  • The appliance locks out or the pressure switch fails to prove, with the tubing as the suspected cause

Before you order

  • Confirm your appliance model against the fit list above before ordering
  • Check the existing tube's length and bore match the 40mm silicone tube specified here
  • Inspect the switch and fan spigots for damage or wear while the tube is removed
  • Verify the part number S208737 against the manufacturer's parts list for your model

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.