Check the listing for details. Phonak Cerustop Filters-Single Pack. Condition: New. Listed at 4.99 USD. Phonak Cerustop Filters-Single Pack The Cerutsop Wax Guards are commonly used on most Phonak, Unitron and Widex models. On Resound Hearing Aid, these are usually used on the BE product. Others, such as the DOT and some BE models will use the Resound Wax Guard that comes on a Disk. If you wax guards come on a grey or black stick, these are the ones. Product Details BrandPhonakSizeSingle pack of 8 filters for Phonak Hearing AidsManufacturerPhonakProduct TypeHearing Aids Amplifiers And AccessoriesMpnCRSTP Cerustop design protects against wax and moisture.Easy-to-use replacement filters on a stick for easy positioning on hearing aid.Fits a number of hearing aids made by Phonak, Resound, Unitron & Widex.Plastic handles to position the filter into your hearing aid.Includes instructions on the inside of the wrapper/package. Check out my other items. - Powered by