Other Accessories Bubble Humidifier Bottle $6.75 Pulse Oximeter $36 Static Oxygen Tubing Connector $2.25 Swivel Oxygen Tubing Connector $4 Nipple Nut-and-Stem "Christmas Tree" Adapter $4.25 E-Z Wrap Soft Foam Ear Protectors (1 Pair) $2.25 Hudson RCI CPAP Pressure Line Adaptor $5.50 Y- Connector Tubing $11 Water Trap $4.5 4 Foot Soft Cannula $6.75 7 Foot Soft Cannula $6.75 25 Foot Cannula $7.75 25 Foot Visible Oxygen Tubing with 2 Standard Connectors $7.75 50 Foot Visible Oxygen Tubing with 2 Standard Connectors $10 7 Foot Pediatric Cannula $6.75 7 Foot Neonatal Cannula $6.75 Invacare Pediatric Flow Meter $330