Ready for your annual filter refresh? The Watersprint Advanced Replacement Filter (Part # 100-2153) is the upgraded, direct-fit replacement filter for existing Watersprint and Acuva under-sink drinking water purifiers.

While the standard filter handles chlorine and bad taste, this denser block filter is specifically certified to trap dissolved lead and microscopic water cysts (parasites like Giardia and Cryptosporidium). It is the recommended replacement choice if you draw water from a lake, river, or older dug well, or if your cabin has older soldered copper plumbing.

It uses the exact same body dimensions and 1/4" push-to-connect ports as the standard filter—meaning you can upgrade your existing system in under two minutes with zero plumbing modifications.