Transmission/Engine Oil Pressure Kit KAL2510 Large 3-1/2" gauges feature a chrome bezel and rugged protective outer boot High pressure gauge reads 0-100 psi and 0-700 kPa Low pressure gauge reads 0-400 psi and 0-2800 kPa Both gauges include rear hook to allow gauge to be hung conveniently out of the way Gauges and hose assembly incorporate quick couplers for easy disconnect