Faucet aerators vary a lot, so it’s common for the right adaptor to take a little trial and error. Filterbaby Skincare Faucet Filter adaptors fit up to 99% of bathroom faucets with a round aerator tip.
Start by looking at the threads on your aerator:
Threads on the inside
Use the female adaptors (threads on the inside). Try each one until it screws on evenly 4–5 full turns. Before installing, make sure a silicone ring is seated at the top of the adaptor.
Threads on the outside
Use the male adaptors (threads on the outside). Try each one until it screws on evenly 4–5 full turns. Check that a silicone ring (black or clear) is in place before installing.
Threads on both the inside and outside
This is usually a universal aerator. Match the adaptor to your faucet threads:
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Faucet threads on the outside → use female adaptors
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Faucet threads on the inside → use male adaptors
Still can’t find a fit?
We likely have a custom adaptor for your faucet. Email help@filterbaby.com with a clear photo of the underside of your faucet (aerator removed), and we’ll help match the correct adaptor or send you a FREE custom adaptor.*
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Need help removing your aerator?
Stuck aerator that you cannot remove? Follow our guide here
The Filterbaby Guarantee
If you’re not obsessed, we’re not obsessed. In the event that your round aerator tip faucet is incompatible and none of the adaptors or custom adaptors work and you choose to swap to a Filterbaby-compatible faucet, we will provide 1 FREE refill ($45 value).**
*Free custom adaptors in the United States (shipping charges apply internationally).
**Eligible 1 claim per customer. To be eligible, submit a photo of your incompatible faucet, a photo of your new faucets with Filterbaby installed, and a photo of your new faucet receipt. Voids return window on your Filterbaby Faucet Filter order. Refill shipping fees may apply outside of the United States.
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*Free custom adaptors in the United States (shipping charges apply internationally).