Glow-Worm 20026404 O-Ring | Genuine Replacement Spare Part
- SKU
- EDDGLOWWORM080
Our Expert's Opinion
“A genuine OEM sealing component that provides a secure, leak proof seal to maintain system pressure and protect internal boiler components.”Glow-Worm 20026404 O-Ring
The 20026404 O-ring is manufactured to original equipment specifications, ensuring precise sizing, correct material composition, and long-term resistance to heat, pressure, and chemical exposure. The quality of the seal is critical to the boiler’s safe operation, as even minor leaks can lead to pressure loss, corrosion, electrical damage, or reduced heating efficiency over time. A properly functioning O-ring helps maintain stable hydraulic performance and prevents unnecessary strain on pumps, valves, and other internal components.
With regular use, O-rings can become flattened, brittle, or cracked due to constant temperature changes, water pressure, and exposure to system chemicals. These issues can cause slow leaks that may go unnoticed until they result in visible water damage or system faults. Replacing a worn seal with this OEM component restores a reliable, watertight connection, improves overall system integrity, and helps extend the lifespan of the boiler. Installation should always be carried out by a qualified heating engineer to ensure correct placement, proper sealing, and full compliance with safety standards.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20026404 |
|---|---|
| Product Code | EDDGLOWWORM080 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Glow-Worm 20026404 O-Ring
The 20026404 O-ring is manufactured to original equipment specifications, ensuring precise sizing, correct material composition, and long-term resistance to heat, pressure, and chemical exposure. The quality of the seal is critical to the boiler’s safe operation, as even minor leaks can lead to pressure loss, corrosion, electrical damage, or reduced heating efficiency over time. A properly functioning O-ring helps maintain stable hydraulic performance and prevents unnecessary strain on pumps, valves, and other internal components.
With regular use, O-rings can become flattened, brittle, or cracked due to constant temperature changes, water pressure, and exposure to system chemicals. These issues can cause slow leaks that may go unnoticed until they result in visible water damage or system faults. Replacing a worn seal with this OEM component restores a reliable, watertight connection, improves overall system integrity, and helps extend the lifespan of the boiler. Installation should always be carried out by a qualified heating engineer to ensure correct placement, proper sealing, and full compliance with safety standards.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20026404 |
|---|---|
| Product Code | EDDGLOWWORM080 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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