... instrument air dryerBKH-C12 series has thermostat control device (thermostat 40-120 ), the type of stainless steel thermostat. Glass instrument air dryer is to ... stains, easy to use, and easy maintenance. The dryer has thermostat control device (thermostat 40-120 °c), the type of stainless steel ... thermostat.Specifications:(1) 12 holes 20 holes 30 holes Keyi need ...