Compatible Replacement Tube by CardioTubes fits Littmann(r) MasterCardiologyI(r) and Littmann(r) Cardiology III(r) Stethoscopes - 7mm Binaurals Black on Black TUBING

What I have found after using this for a period of time has nothing to do with the quality of the product. It's actually quite good and I cannot complain about it! The problem to me is that it's made of aluminum and it's extremely light. So if you're using this on a cardiology Master or a cardiology, two or three is the fact that the head weighs so much. It tends to pull it off of your shoulders and neck. It's made of aluminum and not stainless steel so the weight makes it imbalanced. It's a small thing. You just need to know what you're getting so you can be aware. But it works fantastic.

This fit perfectly on my littmann cardio 3. Perfectly snug and comes with a lot of extra accoutrements. Will definitely purchase again if needed

It was initially a little stiff, but after use, it's great! I don't notice any negatives in comparison to the original Littman tubing.

This worked perfectly with my cardio 4Better option than buying new stethoscope.

This product works great for my Littman cardiology IV. I needed tubing quick due to lack of movement my current one had.

My Littman tubing finally cracked after 40 yrs use almost daily.

It is for anything above a Littman Classic. The 7mm tube ending will not fit a classic.

A perfectly acceptable replacement. Not quite as thick or stiff as the original, works just fine, for half the price of what Littman wants. Easy to install, very easy. It's a no Brainer honestly. The only reason I gave it 4 is because I'm salty I had to buy it in the first place after spending so much on my cardiology master.