The LINEMASTER AirVal foot switches were designed for ease of use and long life. The family of AirVal Foot Controls will meet your varying requirements in a foot operated air valve. With the choice of two-way, three-way, or four-way operation, as well as two-way and three-way variable flow, LiNEMAster AirVals offer a versatile solution for applications requiring light to heavy duty foot controls. Maintained action is a standard feature for one of the robust Hercules models. If our standard AirVal models do not meet your specific application, specialty switches are available. Only from LiNEMAster - American made innovation at work.