Two-sided chest piece with tunable diaphragms on both the adult and pediatric sides. Single-piece tunable diaphragm is easy to attach, and easier to clean because its surface is smooth without crevices. Paetow-sided chest piece with tunable diaphragms on both the adult and pediatric sides. Single-piece tunable diaphragm is easy to attach, and easier to clean because its surface is smooth without crevices. Pediatric side converts to a traditional open bell by replacing the single-piece diaphragm with a non-chill rim. Two-sided chest piece with tunable diaphragms on both the adult and pediatric sides Single-piece tunable diaphragm is easy to attach, and easier to clean because its surface is smooth without crevices Pediatric side converts to a traditional open bell by replacing the single-piece diaphragm with a non-chill rim Next-gener ...