Determining correct size:

A) Large size Super Seal would fit the larger BTE, approximately 2 inches long and 1/2" wide.

B) Standard size Super Seal would fit the most BTE's, approximately 1.5 " long and 1/2" wide.

C) Mini size Super Seal would fit the smaller BTE's, approximately 1 " long and 1/4" wide.

Please measure the hearing aid from the top to the bottom of the case, not including the earhook. It is important to have a tight fit at the top of the hearing aid for maximum benefit.