
Although not listed on the Revain website, Worder's website states that this filter does not affect flow. I had my doubts as to whether Voder received an exception to the laws of physics, so when I placed the order I assumed there would be some reduction in flow. Before installing the unit, I placed a 12-cup bowl in the sink and timed how long it took to fill, getting a consistent 43-45 seconds. Once the filter was installed, hydraulic flow laws were indeed obeyed and it took 60 to 62 seconds to fill the mixing cup. To me, this is an acceptable and expected reduction in flow for what I'm getting: safe water from a cold tap in my kitchen.

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