This pretty handy kit contains all the seals needed for both the standard Nukatap and the Flow Control Nukataps. The majority of these seals would never normally need to be replaced. But in the event of accidental loss / extreme commercial use, please replace said washers with the addition of food-grade lubricant to ensure their longevity. Please refer to the parts diagram for seal locations: If you have not changed your seals before, it's a great idea to take a note of which seal goes where as you remove the old ones!