Using the old LNOP style ("Tongue Style" connection) which Zoll is not making anymore? Then you will need this adapter connection which is the ( "Pin Style") which is what everything is changing to.
• About 1 Foot Long
• Reusable
• New Style
• 6 Per CaseX
• About 1 Foot Long
• Reusable
• New Style
• 6 Per CaseX