AIR LIFT PONT REAR SEE CAT 67-72 Air Spring; Inside Coil Spring Mount; Upto 1000 Pounds Of Leveling Capacity; Air Adjustable From 5 To 35 PSI For Most Applications And 50 To 90 PSI For Motor Home Applications; Polyurethane; With Air Springs/ Air Lines/ Schrader Valve/ Heat Shield Kit/ Fittings/ Installation Hardware; Air Compressor Sold Separately