Waterco Trimline MkII & MK3 Tank Lid O-Ring 62021

Genuine Waterco Trimline cartridge filter tank lid O-ring, part number 62021. This large rubber O-ring seals the tank lid to the filter body on compatible Waterco Trimline MkII and MK3 cartridge filters. A worn, flattened or cracked lid O-ring can allow water to leak around the tank lid. Replacing it helps restore a watertight seal.

Compatibility

• Waterco Trimline MkII cartridge filters
• Waterco Trimline MK3 cartridge filters, in production by 2001 and onward

Check the model label on the filter body before ordering, particularly if you have an early original Trimline filter.

Product details

• Brand: Waterco
• Part number / SKU: 62021
• Barcode: 9314800020924
• Material: rubber
• Genuine Waterco spare part

Frequently asked questions

Does this O-ring fit the Waterco Trimline MK3?

Yes. Part 62021 suits the Waterco Trimline MK3 cartridge filter, which was in production by 2001 and onward.

How do I know if this O-ring needs replacing?

If water is leaking from around the tank lid, turn off the pump, isolate the equipment and relieve all system pressure before opening the filter. Inspect the O-ring for cracks, flattening, stretching or deformation. A seal that has lost its elasticity may also need replacing.

Does this suit the original Trimline MkI?

Part 62021 is listed here for compatible Trimline MkII and MK3 filters. The original Trimline MkI may use a different O-ring. Check the filter model label or contact us before ordering if the version is unclear.

Should I lubricate the O-ring when fitting it?

Apply a small amount of silicone-based O-ring lubricant, not petroleum-based grease, before fitting. This helps the seal seat correctly and reduces the risk of pinching.