A chrome plated zinc alloy single side chestpiece that features identical patented multi-frequency ``Ring-O-Raised`` fiaphragm system with matching ``Ultraflex`` chrome plated binaural tubing assembl
Newborn type that features chrome plated dual head chestpiece, ``Simplex`` binaural with 1 piece molded PVC tubing, metal retaining ring and color coordinated non chill ring.
Newborn type that features chrome plated dual head chestpiece, ``Simplex`` binaural with 1 piece molded PVC tubing, metal retaining ring and color coordinated non chill ring.
Features chrome plated ``Trimflex`` binaural tubing assembly, zinc alloy adult dual-head chestpiece with color coordinated non chinn ring and metal retaining ring.
Features chrome plated ``Trimflex`` binaural tubing assembly, zinc alloy adult dual-head chestpiece with plastic color coordinated retaining and non chill rings.
Features zinc alloy chrome plated chestpiece with ``Simplex`` binaural, 1 piece molded PVC tubing and color coordinated plastic retaining and non chill rings.