Available Options Dwyer 3000-25KPA 3000 Photohelic Pressure Switch Available Options Dwyer 3000-25CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-250CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-20KPA 3000 Photohelic Pressure Switch Available Options Dwyer 3000-20CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-200CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-1KPA 3000 Photohelic Pressure Switch Available Options Dwyer 3000-15KPA 3000 Photohelic Pressure Switch Available Options Dwyer 3000-15CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-150CM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-10MM 3000 Photohelic Pressure Switch Available Options Dwyer 3000-10KPA 3000 Photohelic Pressure Switch