Passy-Muir™ Adapter 4″ x 6″, Used In ConjunctionThe Passy-Muir™ PMA 2020-S Adapter is used in conjunction with the PMV™ 2020 (Clear) (15mm I.D./23mm OD) to attach to the Premier Medical or Pilling Weck brand metal Jackson Improved tracheostomy tubes (sizes 4 – 6 or equivalent).








