Unitron Slim Tubes are available in four sizes, 0 through 3, with 3 being the longest.
Unitron Tubes will fit all unitron hearing aids, as well as the Phonak Mini Valeo open ear hearing aid.
Unitron Domes are available in 3 diameters, 5 mm, 7 mm, and 10 mm. Each of the 3 diameters are also available in a short and long version. Unitron Short and Long Domes will fit most brands of open ear tubes.
Tubes come in Five (5) packs, Domes come in Ten (10) Packs