Comparison : Item # 222-30-THA-208V, Fostoria Architectural Mul-T-Mount Heater
Item # 222-30-THA-240V, Fostoria Architectural Mul-T-Mount Heater
Item # 222-30-THA-277V, Fostoria Architectural Mul-T-Mount Heater
Item # 222-30-THA-480V, Fostoria Architectural Mul-T-Mount Heater
Item # 222-A30-THA-208V, Fostoria Architectural Mul-T-Mount Heater