Spare acoustic tube earpiece for items listed

Spare acoustic tube earpiece for the following items:

- EP-3423-K2 Earpiece/Microphone

- AC-0425-K2 Noise Cancelling Earpiece/Microphone

- TM-3225-K2 Heavy Duty Throat Microphone/Earpiece

- TM-0625-K2 Throat Microphone/Earpiece