The Graham Field 602SL-GEL (Labtron/Grafco) is a specialized diagnostic instrument from the Gel Series, featuring a unique translucent Slate Blue Gel finish. This professional "5-in-1" Sprague Rappaport-type stethoscope is engineered for multi-functional use across adult, pediatric, and neonatal patients. It utilizes a revolvable twin-drum zinc chestpiece that allows for quick switching between five interchangeable attachments (two diaphragms and three open bells). The heavy-walled 22-inch double tubing provides separate acoustic channels to each ear, ensuring high-fidelity sound transmission by minimizing environmental noise and internal friction sounds.