InvisiClean Water Pitcher Filter - Tip for Removing Filter: Wipe dry and wear plastic gloves to grip the screw piece better also. Works well. I like the price. Great taste for my water which is very hard. Great for my coffee maker as well. Bought a TDS meter to check the quality of the filtration over time. I advise to use as directed, keeping refrigerated and so on. I will say that it's best to fill the pitcher reservoir with the lid on. Too much water pressure from filling without the lid on will cause more of the. (Harmless) Carbon to deposit into the filtered water section of the pitcher.