Phonak Unitron 4.0 Slim Tube

Description

Phonak SDS 4.0 slim tubes (part of the Sound Delivery System) transfer processed sound from a behind-the-ear hearing aid into your ear canal.

They connect easily to the hearing aid and feature a built-in retention lock to keep the device discreet and securely positioned inside your ear.

Replacement SDS 4.0 slim tubes. Each packet contains 5 slim tubes and a cleaning pipe.

Phonak | Unitron Domes 4.0 are the replacement hearing aid domes that fit this slim tube.

SDS 4.0 slim tubes are mainly used with NHS Phonak Nathos Nova Hearing Aids. They are compatible with other Phonak and Unitron BTE hearing aids, though the NHS is the largest user.

Phonak / Unitron 4.0 slim tube 4.0 size guide

• Phonak | Unitron 4.0 Slim Tube Size 00 (shortest) – estimated ear size 10-15 mm
• Phonak | Unitron 4.0 Slim Tube Size 0 – estimated ear size 15-23mm
• Phonak | Unitron 4.0 Slim Tube Size 1 – estimated ear size 23-27mm
• Phonak | Unitron 4.0 Slim Tube Size 2 – estimated ear size 27-34
• Phonak | Unitron 4.0 Slim Tube Size 3 (Longest) – estimated ear size 32-35mm

The image below shows how to measure your ear and identify the appropriate length of the slim tube.

Your existing tubing should be marked with the correct replacement number.

If unsure, do not guess; the product cannot be returned once opened due to hygiene reasons. Contact us for help choosing the correct size.

The right tubes are marked with a red number indicating the tube length.

The left tubes are marked with a blue number indicating the tube length.

Your hearing aid user guide will have instructions on how to change the slim tube. You can also view the video below to see how to clean and change the tubing.

How to clean / change your Phonak hearing aid slim tubes

Slim tube care tips

• If your slim tube has become brittle or cloudy, replacing it can restore the hearing aid’s performance.
• If the slim tube has a kink, it should also be replaced.
• Clean the slim tube regularly with the cleaning pipe included in each packet.
• Most hearing aid users benefit from replacing the slim tube every 1 to 3 months.

Phonak hearing aids and Unitron hearing aids are part of the Sonova Group and share slim tubes,  receivers, domes and filters.