Description
Product Overview
The Adult Pediatric Diaphragm with Rim Assemblies from EBSales is engineered to replace the standard chest piece on both the adult and pediatric sides of a stethoscope. Constructed from high‑grade stainless steel and medical‑grade polymer, the diaphragm offers a tunable surface that adapts to low‑frequency heart sounds and high‑frequency lung sounds with equal clarity. Precise dimensions of 2 × 2 × 0.02 inches and a weight of just 0.63 oz ensure a lightweight feel while maintaining durability. The rim assemblies are designed to match the 1¼‑inch width of the Cardiology III series, providing a seamless fit that eliminates gaps and acoustic leakage. This product is compatible with leading brands such as 3M Littmann, FriCARE, Ever Ready, MDF Instruments, and Prestige, making it a versatile upgrade for a wide range of professional stethoscopes.
![[Product front view showing all components]](https://www.jalviro.store/wp-content/uploads/2026/07/6b5b2e017a934fa9af54f9af26a84227.jpg)
Usage
Clinicians in hospitals, clinics, and veterinary practices will find this diaphragm especially useful during routine examinations, cardiac assessments, and respiratory evaluations. The tunable rim allows users to adjust pressure for optimal sound transmission, whether listening to a newborn’s delicate heartbeats or an adult’s deep lung sounds. The included extra ear pieces provide additional comfort for long‑hour shifts, reducing ear fatigue for doctors, nurses, and veterinarians alike. Its universal fit means it can be quickly swapped onto existing stethoscopes without the need for specialized tools, ensuring minimal downtime during patient care.
Why Choose Us
EBSales commits to rigorous quality control, testing each diaphragm for acoustic fidelity and structural integrity before shipment. The manufacturing process adheres to ISO‑13485 standards, guaranteeing that every component meets medical‑device regulations. Our rim assemblies are precision‑machined to ensure a tight seal with Cardiology III models, preventing ambient noise from interfering with diagnostic listening. Additionally, the product comes with a 12‑month warranty and responsive customer support that assists with installation guidance, troubleshooting, and replacement parts, reinforcing our dedication to professional reliability.
Key Features
- High‑grade stainless steel diaphragm delivers crystal‑clear acoustic performance for both adult and pediatric patients.
- Precision‑engineered rim assemblies fit Cardiology III stethoscopes without modification, ensuring a secure, leak‑free connection.
- Includes two extra ear pieces for added comfort during extended clinical use, reducing ear fatigue.
- Universal compatibility with major stethoscope brands, allowing seamless integration into existing equipment inventories.
- Backed by a 12‑month warranty and dedicated after‑sales support for hassle‑free installation and maintenance.
FAQ
Does this diaphragm fit all Littmann models?
While the diaphragm is optimized for Cardiology III (3) and Cardiology IV models, it also fits many other Littmann series that share the same rim dimensions. Always verify the rim width of your specific model before purchase.
Can the rim assemblies be adjusted for different pressure levels?
Yes, the tunable rim design allows clinicians to apply varying pressure to the diaphragm, enhancing sound clarity for both low‑frequency cardiac sounds and high‑frequency pulmonary sounds.
What is the recommended cleaning method?
Clean the diaphragm and rim with a soft, lint‑free cloth dampened with mild soap solution. Avoid abrasive cleaners or solvents that could damage the stainless‑steel surface.
Are the extra ear pieces compatible with other stethoscope brands?
The included ear pieces are designed with a universal fit that works with most major stethoscope manufacturers, including Littmann, FriCARE, and Prestige, ensuring cross‑brand comfort.
How does the warranty process work?
If you encounter any defects within the 12‑month warranty period, contact EBSales customer support with your order details. We will arrange a replacement or refund according to our warranty policy.





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