ECG / EKG Medical Grade Recording Chart Paper, Roll, Red Grid, 63x46, Equivalent to Datascope 0683-00-0267 Fits Datascope model 721A (sold by the roll, 100 rolls per case) Availability: Usually ships the same business day. Datascope 0683-00-0267 Equivalent A18704D$1.15 Copyright 2003-2005, 2006 A1Cardiology.com