Philips Sure-Lock™ Double Sided EKG Adapter Clips (989803166031) (A34). Universal Clear Tab/Snap Adapter to Cardiograph Lead. Enables the connection from 3mm or 4mm post banana plug coming from the Cardiograph to tab and snap style electrodes. Adapters can be used with Philips PageWriter TC Series Cardiographs 860315 and 860310. 10EA/BG. Priced per bag.