Poly/Plantronics Voice Tubes for the Encore HW510V and HW520V Headsets - 202118-01
Easily slides on the voice tube shaft. Recommendation for replacement tubes is every 6 months. Available in brand and generic.
Brand - $8.95 - P15124
SAVE Buy Generic - $3.95 (Always buy 25 get 5 FREE) P12925
