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: * 1x 63mm Diameter gauge * 1x 280mm Flexible hose * 1x Adaptor https://elecena.pl/product/27253147/draper-35880-petrol-compression-tester 2024-11-13 https://elecena.pl/product/27253147/draper-35880-petrol-compression-tester 2025-03-14