The Check Ball with Retainer for Ambic Foaming Style Cup comes in a convenient 3-pack, ensuring you have replacements on hand. These components are crafted from durable materials, designed to withstand the rigors of daily use in dairy operations. The check ball ensures proper flow and prevents backflow, enhancing the efficiency of your foaming dip cup. Easy to install, these retainers are compatible with various Ambic models, making them an essential accessory for maintaining optimal performance and hygiene in milking processes.