• Replacement Tube (Dual Lumen binaurals) fits All Leading Brand Dual-Head Cardiology Stethoscopes - T71 Black KWD 10.500
• Replacement Tube (Dual Lumen binaurals) fits All Leading Brand Single-Head Cardiology Stethoscopes T72 Black KWD 10.500
• Replacement Tube by MohnLabs fits ALL leading brand SE standard classic Stethoscopes - T31 Sky Blue KWD 7.500