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Glow-worm Packing Ring EPDM 0020020501

Glow-worm

Glow-worm Packing Ring EPDM 0020020501

EPDM packing ring measuring 133mm x 161.5mm, manufactured by Glow-worm for use in its gas boiler range.

At a glance

  • Also known as 1337675
Manufacturer part no.
0020020501
Showing prices

£19.69

£16.41 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 0020020501 is an EPDM packing ring measuring 133mm x 161.5mm. It is a sealing component used within Glow-worm gas boilers, sitting at a joint to prevent water from escaping under pressure. EPDM is chosen for its resistance to hot water and its ability to hold a seal across repeated heating cycles.

Signs this part needs replacing

  • Water weeping or dripping from the joint the ring seals
  • Visible cracking, splitting or perishing of the rubber
  • The ring has hardened or lost its flexibility
  • Flattening or deformation of the ring profile
  • Water staining or scale deposits around the sealing face

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing ring measures 133mm x 161.5mm before ordering
  • Verify the part number 0020020501 matches the component being replaced
  • Inspect adjacent seals and washers for wear while the joint is open

Not sure which part?

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