Draper Petrol Compression Tester

Compatible with direct and indirect petrol engines which use 14 and 18mm spark plug threads. The dual reading pressure gauge 0-300psi/0-20BAR is fitted with a heavy duty rubber protector. Fitted with a spring-loaded pressure relief valve and integrated Schrader one-way valve system. Supplied in a plastic storage case.
Contents:
•   63mm Diameter gauge
•   280mm Flexible hose
•   Adaptor