Unlock to see our ratings and compare products side by side a measure of how much the flow rate decreased, or time to filter increased, over the course of filter cartridge's lifespan. The Pur FM-3333B ...

Unlike countertop units that divert water from a tap to a sink-side cartridge, faucet-mounted water filters are compact devices that attach directly to your faucet. Depending on their efficacy, they ...