Glow-worm O-Ring Pack of 10 GLOWWORM0020061588

The Glow-worm 0020061588 is an O-ring supplied in a pack of ten. O-rings are the compressible seals that sit in machined grooves around ports, spigots and threaded joints on heating appliances, deforming as the assembly is tightened to close off the joint against water or gas escape. This pack covers multiple joints on a single appliance or provides spare seals for future servicing work.

• Water weeping or a visible drip from a joint, port or spigot where an O-ring forms the seal
• Staining, scale build-up or corrosion around a connection that was previously dry
• A flattened, hardened or cracked O-ring found during strip-down of a joint
• Gradual loss of system pressure that traces back to a sealed connection rather than the pipework
• A joint that continues to seep after being re-tightened, indicating the seal has taken a permanent set

• Confirm the part number against your appliance's parts list or data badge before ordering.
• Match the O-ring to the groove it sits in rather than to the appliance model; seals are sized to the port, not the boiler.
• If a joint is being opened for access, check whether the surrounding connections also need new seals so the work is completed in one visit.