I bought this because my canister cap broke. If you want to replace the button I would just buy the complete top. It's really not much more than just these parts. Let me just say that replacing the canister's cap is extremely difficult. Basically you have to disassemble the entire canister to replace this small part. There are videos on YouTube explaining this process so it really helps. The color on them is definitely not the same as they are more orange than red. The part actually worked and solved my problem. It was quite cramped at the beginning and it was difficult to empty the bin. After a few uses it has relaxed and is working well.
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