About this item

• Made in America by the Ball Mason Jar Company
• 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-generation tubing provides longer life due to improved resistance to skin oils and alcohol; less likely to pick up stains