GLOWWORM S212121 O RING SUPERIOR SEALS BS118

  • Our Part No: 1334623
  • MPN: S212121

We're sorry but this product has now been discontinued by Glowworm Boiler Spares and can no longer be purchased.

No known replacement is available.

Why Choose DHS?

GLOWWORM S212121 O RING SUPERIOR SEALS BS118.

Product Information: The o-rings, gaskets and washers are used in lots of different areas within your central heating boiler. They are used when sealing pipework to other parts within the boiler. Heat exchangers, condensate traps and many others parts require orings, washers and gaskets to prevent leaks of gas or water occuring.

This part is present in 16 different boilers in the Glowworm range including the Glowworm DERWENT FIRE FRONT , ENERGYSAVER 30 , ENERGYSAVER 30E , ENERGYSAVER 40 , ENERGYSAVER 40E . In the next tab there is an appliance grid with links to all boilers that contain this part, Please use this if you would like to view all other spares that fit that model and download the user manual for that appliance. If none of these models match the appliance you have, please contact us before ordering so we can confirm this part is compatible.

We recommend that all parts are fitted by a fully qualified gas safe certified technician. Please feel free to contact us if you require our assistance finding a part. Collectively we have over 200 years of boiler spares knowledge and distribution experience and our friendly call centre staff will be happy to help you with any query you may have


The GLOWWORM S212121 O RING SUPERIOR SEALS BS118 is a genuine, brand new Glowworm Boiler Spares product, covered by a Glowworm Boiler Spares manufacturer's guarantee.

Not what you're looking for? Try our unique Spares Finder tool or you can view all Glowworm Boiler Spares products.

For advice on this or any product, please call us on 0330 123 3707, email us at web@dhsspares.co.uk, or see additional ways to contact us here.

At DHS we offer a range of product options to suit different budgets and requirements, while maintaining quality and reliability across all categories.

Below is an explanation of each product type available on our website. Please note that not all products will have all options available.

Unbranded Part

BEST VALUE

Unbranded Component Product. Genuine manufacturer component, but no branded packaging.

  • Sourced Directly from the Manufacturer
  • Supplied in Unbranded Packaging
  • Same Quality & Function as OEM Version
  • Cost Effective Alternative
  • 12 Month Warranty

Branded Part

ORIGINAL PART

Original Equipment Manufacturer Component with branded packaging.

  • Genuine Original Part
  • Sourced Directly from the Manufacturer
  • Manufacturers Official Packaging
  • Trusted Manufacturer Quality
  • 12 Month Warranty

Alternative Part

Compatible replacement parts sourced from a third party Manufacturer.

  • Lower Cost Replacement Option
  • Fully Functional Alternative
  • Appearance, design or materials may differ from the original part
  • 12 Month Warranty

Refurbished Part

Original OEM components that have been professionally refurbished.

  • Genuine OEM Component Professionally Refurbished and Tested
  • Environmentally Conscious Choice
  • Excellent Value for Money
  • 12 Month Warranty

Need Help Choosing?

If you are unsure of which product category is right for your repair or installation, our team is happy to help.

Contact us for expert advice on compatibility, pricing and availability.

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