Card of 8 filters: 4 blue (left) and 4 red (right)
Remember to use the blue filter for the left hearing aid and the red
for the right one.
Sentry II was designed to help prevent wax damage to the receiver of
your hearing aid.
Replace your Sentry II wax guard every time you change your battery or,
at least every 2 weeks.
The Sentry II wax Guard is intended for use only on Beltone products
manufactured with this feature.
Ships with Instructions Booklet and insertion/replacement tool.