Compatible Stainless Steel Shell Boumatic 8517327 – Pack of 4 The Compatible Stainless Steel Shell Boumatic 8517327 is a durable replacement shell set designed to deliver reliable performance in Boumatic-style milking cluster assemblies. Shells play a crucial role in housing liners securely, supporting correct vacuum stability and consistent milking performance during daily parlour operation. Manufactured from high-quality stainless steel , these shells offer excellent resistance to corrosion, impact, and regular washdown , making them ideal for demanding dairy environments. Stainless steel construction supports long service life while maintaining strong hygiene standards, even with frequent exposure to moisture and cleaning chemicals. Designed to closely match original specifications, each shell features an outside diameter of 45mm , length of 140.5mm , 19mm hole , 8mm pipe , and 1.5mm wall thickness . These precise dimensions ensure correct liner fitment and secure connection within compatible Boumatic milking systems, helping maintain stable vacuum conditions and smooth milk flow. Supplied as a pack of four , the Compatible Stainless Steel Shell Boumatic 8517327 is ideal for rou