Customer Questions and Answers for Water Filter Bypass Plug by Whirlpool

Terry, your refrigerator does not need a "bypass cap" Just remove the filter and install the water filter cap. The filter housing has an "automatic" bypass system that will allow the water to flow through the system with the filter removed. If the water filter is clean or new, the more likely issue would be a "clogged fill valve or low water pressure to the refrigerator valve connection from the cold water supply.