Discover the 3M™ Littmann® accessory kit 40013, an essential replacement set designed to ensure optimal performance for your Classic II Infant stethoscope. This kit includes an adjustable diaphragm and two assembly rings, all made with high-quality materials to ensure durability and reliability over time.

Product features

• 3M code: 40013


• Compatibility: Specifically designed for the Classic II Infant model


• Color: Elegant, professional black


• Packaging: Sold in blister pack for optimal protection

Benefits of the Adjustable Diaphragm

The kit's adjustable diaphragm allows the sound to be adapted to different clinical needs, offering greater diagnostic precision. Thanks to its advanced technology, you can hear heart and respiratory sounds clearly, improving the effectiveness of your medical assessments.

Easy Installation

The kit is designed for quick and easy installation. The assembly rings ensure a perfect fit, reducing the risk of sound leakage and ensuring that your stethoscope always performs at its best.

Why Choose the Littmann 40013 Kit?

• 3M™ quality: A brand synonymous with excellence in the medical field.


• Reliability: Components designed to withstand daily use in clinical environments.


• Professional support: Ideal for doctors, pediatricians, and healthcare professionals.

Don't let a worn component compromise your practice. Choose the Littmann 40013 Kit and make sure your Classic II Infant stethoscope stays in perfect condition. Buy now and improve your clinical experience!