ECG / EKG Medical Grade Recording Chart Paper, Z-Fold Pad, Red Grid, 70x100x200, Equivalent to Schiller 2157-007A, Kendall 30999067, 3787752. Fits Schiller model AT-3 (sold by the pad, 100 pads per case) Availability: Usually ships the same business day Schiller 2157-007A equivalent A17732$5.95 Copyright 2006-2011, A1cardiology.com