Description
HF4 wax filters (2.4mm diameter) are designed for ReSound, Danalogic, Signia (Siemens), and Phonak hearing aids, specifically custom In-The-Ear (ITE) or Receiver-In-Canal (RIC) models. These are colour-coded (red for right, blue for left) and serve as a 2.4mm threaded barrier against debris.
HF4 wax filters are a reliable and essential accessory for maintaining the performance of your hearing aids. They are designed to protect the receiver from earwax, dust, and everyday debris, helping to preserve sound clarity and reduce the risk of blockages. Simple to replace and hygienic to use, HF4 filters support consistent audio quality and can help extend the lifespan of your hearing aids when changed regularly.
Key Compatibility & Features:
HF3 and HF4 wax guards are not tied to one single hearing aid brand only—they’re used across several manufacturers, especially in custom in-the-ear (ITE) hearing aids and earmould receivers.
Compatible with;
- Phonak (especially custom earmoulds / UP receivers in some models)
- Signia (older Insio and some custom ITE devices)
- ReSound (certain custom shells and older RIE/ITE systems)
- Danalogic I-Fit (IFCS61, IFCS71/81)
- Siemens (legacy devices; now largely under Signia branding)
Audio Service
- Some Hansaton and other European ITE systems
Important compatibility detail
Even within the same brand, HF3 and HF4 are not interchangeable
Donald lanchester (verified owner) –
derek moore (verified owner) –
Alan J. (verified owner) –
Nice but only had one tool to take out and insert into hearing aid out of two packs