Step 1: If your faucet is a "pull out" style:
Please ensure you can unscrew the aerator (see here) to expose the threads.
Note: For faucets where you cannot unscrew the aerator with a wrench, an aerator removal tool may be necessary.
Step 2: After you unscrew the aerator:
Measure the diameter of that opening and order the right adapter below if needed.
Note: We include the 24mm and 20.5mm adapters with the order, however, if your faucet has a deep thread, you may need to purchase this in the "Extra Long" version (item a. or c.) below.
a). 24.0mm (0.95" Diameter) Extra Long - ST
b). 21.5mm (0.85" Diameter) - JU
c). 20.5mm (0.80" Diameter) Extra Long
d). 19.0mm (0.75" Diameter)
e). 18.5mm (0.73" Diameter) - TJ
f). 16.5mm (0.65" Diameter) - TT
Step 3: Our diverter screws onto your faucet and sends water to the countertop filter on demand by a turn of the handle.
If your kitchen faucet is not compatible:
*If you happen to have such a faucet type where the aerator cannot be removed, you may then want to consider our undercounter systems: ULTRA-UC or our most advanced system ULTRA-UC-DISINFECT which come with their own dedicated faucets; or if you still wish for the countertop system, then another option is to change your kitchen faucet to one that has a removable aerator, e.g.:
Examples of compatible faucets:
https://www.amazon.com/Moen-7425-Chateau-One-Handle-Kitchen/dp/B00002ND0X
https://www.amazon.com/7437-Chateau-Handle-Kitchen-Faucet/dp/B000UNOLM0
https://www.amazon.com/Moen-7051-Chrome-One-Handle-Kitchen/dp/B07QQD247X
https://www.amazon.com/Moen-Resist-Stainless-one-Handle-Kitchen/dp/B076KTXPP1
https://www.amazon.com/Moen-Resist-Stainless-one-Handle-Kitchen/dp/B07G4K8YM8