Model NumberHHT25S LTA (2)HHT25S LTA/A (2)HHT25S LTAT (2)HHT25S LTAT/A (2)HHT31S LTA (2)HHT31S LTA/A (2)HHT31S UNBA (2)HHT31S UNBA/A (2)HHT35S LTAT (2)HHT35S LTAT/A (2)More