GROUNDD Umbrella Valves (4 Pack)

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These valves have been designed to ensure the breaking pressure at static and certain dynamic loading conditions doesn’t allow the escape of over brewed liquid from the ‘dirty’ sid e of the piston. The umbrella valve has been optimized for the viscosities seen in tea and coffee with many principles from fluid dynamics taken into account when designing the thickness and hardness of the valves as well as how liquid would flow through. These valves are designed to be removed easily without damaging them multiple times if a deep clean is required without having to buy new valves. However, if you do damage or lose any valves you can repair rather than replace. Rinse after use, dishwasher safe. Show more