ECG / EKG Medical Grade Recording Chart Paper, Z-Fold Pad, Red Grid, 135x140x150, Equivalent to Schiller 2157-013A Fits Schiller model AT-5 (sold by the pad, 10 pads per case) Availability: Usually ships the same business day Schiller 2157-013A equivalent A110922$1.69 Copyright 2006-2011, A1cardiology.com