Dairymaster SwiftFlo Teatcup Shell Heavy – Pack of 4 The Dairymaster SwiftFlo Teatcup Shell Heavy is a premium, heavy-duty stainless steel teatcup shell designed for demanding dairy parlours. The Dairymaster SwiftFlo Teatcup Shell Heavy combines robust construction with precision engineering, providing excellent liner support and maintaining consistent vacuum levels for smooth, efficient milking. Built for intensive daily use, this heavy-duty shell ensures reliable cluster handling and long-lasting performance, making it an essential part of any SwiftFlo system. Each shell comes complete with a blue retainer , allowing quick, secure installation and helping protect liners from damage or misalignment during milking. The Dairymaster SwiftFlo Teatcup Shell Heavy is particularly suited to high-throughput dairy operations, where durability and cluster stability are critical. Its strong, stainless steel body resists wear, supporting even milk flow and maintaining vacuum stability across every milking session. Farmers and engineers rely on these shells to improve cluster handling, reduce downtime, and extend liner life , making routine replacements or parlour upgrades straightforward. Whe