Economizer - Standard Leak Economizer, Horizontal Orientation, Honeywell W7212 Single Speed Electromechanical Controller, Fixed Dry Bulb Sensor, Siemens Actuator, Painted Rain Hood with Aluminum Filter, Barometric Relief, Units That Goes with Economizer:Carrier 48HC A/B07,D/E08-D/E12; 48/50LC 07; 48/50TC A08-A12, D/E08-D/E14;50HC A/B07,D/E08-D/E12; 50HCQ A07,D08,D09; 50TCQ 08,09, Bryant 548J 08D-12D; 549J 07A,08D,09D; 551J 07A,08D-12D; 558J 08A/D-12A/D,14D; 580J 08A,09A/D,12A/D, 14D; 581J 07A,08D,09D,12D, ICP RAH,RH 072,090,102,120; RAS,RGS 090-150; RHH 072,090,102;RHS 090,102,120, Dims:35"H 26 3/4"W 25 3/8"D, Weight:300 Lbs, Origin:Usa,