This Is Brand New Original Factory Replacement Diaphragm Cerwin Vega TMH-1 Diaphragm LDHVD1000, TMH1, TMH-1-8, TMH18, JMH-1, JMH1, JMH-1-8, JMHH18.Cerwin-Vega has used this diaphragm in many different cabinet models such as CV253, CV 253, CV 253, CVX253, CVX 253, CVX 253, V253, V-253, V 253, V30D, V30-D,V-30D, V 30D, V 30-D, V-30-D, V30 D, V35C, V35-C, V-35C,V 35C, V 35-C, V-35-C, V35D, V35-D, V-35D, V 35D, V 35-D, V-35-D, V37C, V37-C, V-37C, V 37C, V 37-C, V-37-C, V37 C, V37D, V37D, V-37D, V 37D, V 37-D, V-37-D, V37 D, D32C, D32-C, D-32C, D 32C, D 32-C, D-32-C, D32 C, MDH1083, and many more models.