What This Stopper Cover Set Is For
The Stopper Cover Set (Light Blue) is a genuine Zojirushi replacement part designed for the SM-SF(-AM) Mint Blue bottle. It includes the stopper cover only — not the complete stopper assembly. If your current cover is cracked, discolored, or no longer seals well, swapping it out can restore the bottle's function and appearance.
Stopper Cover Set at a Glance
- Stopper Cover Set (Light Blue) for SM-SF(-AM) Mint Blue **EXCLUDES STOPPER SET: This set includes a light blue stopper cover for the SM-SF(-AM) Mint Blue bottle. It does not include the stopper set (the inner valve and gasket assembly). Knowing exactly what's in the set helps you order the right part and avoid buying a full stopper assembly when only the cover needs replacement.
Stopper Cover Set (Light Blue) for SM-SF(-AM) Mint Blue **EXCLUDES STOPPER SET - Stopper Cover Set (Light Blue) for SM-SF(-AM) Mint Blue **EXCLUDES STOPPER SET: The product carries a Prop 65 warning: it can expose you to chemicals including nickel, which is known to the State of California to cause cancer. This is a standard California warning for metal components. If you're concerned, handle the cover with clean hands and wash it before first use.
How to Replace the Stopper Cover
Replacing the stopper cover is a quick process that takes about a minute. You'll only need the new cover and your bottle.
- Remove the Old Cover: Open the stopper on your SM-SF bottle. Grip the existing cover firmly and pull it upward to detach it from the stopper base. It should pop off with moderate pressure.
- Inspect the Stopper Base: Check the stopper base for cracks, wear, or debris. If the base itself is damaged, a cover-only set won't fix the seal — you may need a full stopper assembly.
- Attach the New Cover: Align the light blue cover with the stopper base and press down evenly until it snaps into place. Make sure it sits flush all around.
- Test the Operation: Open and close the stopper a few times to confirm the cover stays secure and the stopper moves smoothly.
Care Tips for Your New Stopper Cover
Wash the new cover by hand with mild soap and warm water before first use. Avoid abrasive scrubbers that could scratch the plastic. The cover is not dishwasher-safe unless stated otherwise in your bottle's manual. Regular cleaning prevents residue buildup and keeps the seal working.
