Expert Quality, compatible with direct and indirect petrol engines which use 10, 12, 14 and 18mm spark plug threads. Attached with a digital LCD display gauge with a choice of three pressure scales 0 – 300psi/0 – 20bar/0 – 2000kPa and fitted with a heavy – duty rubber protector. The braided stainless steel hose improves durability. Fitted with a spring – loaded pressure relief valve and integrated Schrader one – way valve system. Supplied in a plastic storage case.