SAC Liner 15010 (Pack of 4) The SAC Liner 15010 contains four replacement rubber milking liners designed to correspond with compatible SAC milking clusters using reference 15010 . Each liner fits inside the teat cup shell and provides the flexible contact surface that opens and closes during pulsation throughout the milking cycle. The SAC Liner 15010 features a short head design with an overall liner length of 300mm . Each liner has a 22mm head opening and a 14mm connection . Supplied as a pack of four this provides a convenient way to replace a complete set of liners on a compatible four-cup milking cluster. Milking liners are exposed to repeated pulsation stretching milk contact and cleaning cycles which gradually affects the condition and flexibility of the rubber. Worn liners can become hardened stretched cracked or distorted which may affect liner movement teat contact and overall cluster performance. Replacing all four liners together helps maintain consistent characteristics across the complete cluster. The SAC Liner 15010 is a practical replacement for farmers and dairy engineers maintaining compatible SAC milking equipment . Before ordering check the original liner referen