Shiley 4FEN Low Pressure Cuffed, Fenestrated Reusable Cannula, Size 4 – Save Rite Medical
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Shiley™ 6DCFN Cuffless Tracheostomy Tube with Disposable Inner Cannula Fenestrated, Size 6, 6.4 mm ID (Each) - Walmart.com
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Mallinckrodt Medical Inc Shiley™ Fenestrated Reusable Cannula Cuffless Tracheostomy Tube 6 Size 76mm L, 6-2/5mm ID x 10-4/5mm OD, Designed for General Pulmonary Hygiene Manufacturer #: 6CFN