Compatible Boumatic Magnum 400MX liner (non-vented) – Pack of 4 Length 303mm. Hole head 23mm. Connection 10.5mm. The Compatible Boumatic Magnum 400MX Liner (Non-Vented) is a replacement teat rubber designed for milking clusters that specify the Magnum 400MX geometry without venting. It offers a reliable, cost-effective option for maintaining efficient milk flow and stable vacuum during each milking session, helping support smooth parlour performance and cow comfort. Made from high-quality dairy-grade elastomer, this liner provides even, gentle contact with the teat to encourage effective milk removal while helping protect teat condition when used with proper machine settings and regular maintenance. The non-vented design means the liner relies on standard air-release paths rather than additional vent holes, making it suitable for parlours or systems where non-vented liners are preferred. Routine liner replacement is an important part of parlour hygiene and milking efficiency, as worn or hardened liners can reduce milking performance and increase the risk of teat stress or mastitis. These compatible liners are crafted to fit/Boumatic Magnum-style clusters and help you maintain peak
