80% 2 Stage Variable Speed Comm. Upflow/Horizontal Furnace Armstrong SKU A80US2V070A12 Please select 70 MBH 80% 2 STG. UP/HORIZ-COM90 MBH 80% 2 STG. UP/HORIZ-COM90 MBH 80% 2 STG. UP/HORIZ-COM90 MBH 80% 2 STG. UP/HORIZ-COM110MBH 80% 2 STG. UP/HORIZ-COM135MBH 80% 2 STG. UP/HORIZ-COM Log in to view price