Co2 Kit-Unit Mount, For 6.5 - 12.5 Ton Predator, 3 - 6Ton and 15 - 25 Ton Sunline, Weight:41/2 Lbs, In Box, Made in USA.(Kit Includes:Co2 Sensor (1), Co2 Sensor Base (1), Pilot Tube Kit (Tubing to Be Cut to Length for Each Application) (1), Co2 Sensor Bracket For 3 - 6 Ton (1), Co2 Sensor Bracket for 7 - 25 Ton (1), 0 - 10 VDC Potentiometer Signal Converter (Honeywell Q796C) (1), Co2 Sensor "Splice" Wiring Harness (W7212 Economizer Control) (1), 8 X 1/2" Pan/Phil Screws (6), 8 X 3/4" Pan/Phil Screws (2), 4" Voilet Wire (1), 9" Violet Wire (1), 9" Red Wire (1), 10' Brown Wire (1)10' Red Wire (1), Wire Ties (8), 7/8" X 1/2" Snap Bushing (1), 10-16 X 1/2" Hextex Screws (2))