Compatible BouMatic Flex 50 Liners (Pack of 4) The Compatible BouMatic Flex 50 Liners are high-quality milking liners designed to provide reliable and consistent performance in milking systems using BouMatic Flex 50 type liners. Built to precise specifications, these liners help ensure smooth milk flow, stable vacuum levels, and effective pulsation during the milking process. Each liner in the Compatible BouMatic Flex 50 Liners measures 300mm in length , with a 25mm head hole size and an 11mm connection , ensuring a secure fit within compatible cluster shells. Accurate liner dimensions are essential for maintaining correct liner action, helping to support efficient milk extraction and consistent cluster performance. Manufactured from durable, flexible rubber materials, the Compatible BouMatic Flex 50 Liners are designed to withstand the demands of daily milking routines and repeated wash cycles. Their resilient construction supports proper teat massage and controlled milk flow, helping to maintain udder health and milking efficiency across the herd. These liners are available with an air vent or without an air vent , allowing farmers and technicians to select the configuration that