The 9001K push button line has a large variety of operators and accessories for heavy industry applications. These operators are used in the petrochemical, metallurgy, mining, oil and gas, wastewater treatment and automotive manufacturing industries and more. Protective boots are recommended for very dirty environments or severe hose down applications. This protective boot is to be used on selector switches with a standard knob. This protective boot has a gloved hand cap. This boot can be used with illuminated or non-illuminated selector switches. """"""""""""