Draper - Diesel Compression Test Kit (12 piece) Compatible with direct and indirect fuel injection systems. The dual reading pressure gauge 0 - 1000psi/0 - 70bar is fitted with a heavy duty rubber protector. Anti - kink coil attached to either end of the flexible hose to increase durability. Fitted with a spring - loaded pressure relief valve and integrated Schrader one - way valve system. Supplied in a plastic storage case.