Temperature Control
Mark 80 Series ⟶
Self-Operated, No External Power Source
Mark 801/802 Series ⟶
Self-Operated, High Flow
Mark 82 Series ⟶
Internal Piloted
Mark 85 Series ⟶
Controlled Failure Option
Mark 86 Series ⟶
Ambient Temperature
Mark 87 Series ⟶
Externally Piloted
Mark 89/89MX ⟶
Three-Way, Diverting or Mixing Service