This diaphragm is compatible with the following models: 2431, 2431H, 339894-002X, SRX700, SRX712, SRX715, SRX738, VLA301, VLA60, VLA601, VLA901, PD 764, PD743, VT4888, PD5322, PD5200, AM6200, AM6212, AM6315, AM6340 & More.